SECURITY.md by Apidwalin · Pull Request #753 · google/google-api-javascript-client

Apidwalin · 2021-07-23T04:49:41Z

From c4ca027 Mon Sep 17 00:00:00 2001
From: apidwalin 84679338+Apidwalin@users.noreply.github.com
Date: Fri, 23 Jul 2021 09:16:58 +0700
Subject: [PATCH 1/4] Create codeql-analysis.yml

.github/workflows/codeql-analysis.yml | 71 +++++++++++++++++++++++++++
1 file changed, 71 insertions(+)
create mode 100644 .github/workflows/codeql-analysis.yml

diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
new file mode 100644
index 0000000..09200e8
--- /dev/null
+++ b/.github/workflows/codeql-analysis.yml
@@ -0,0 +1,71 @@
+# For most projects, this workflow file will not need changing; you simply need
+# to commit it to your repository.
+#
+# You may wish to alter this file to override the set of languages analyzed,
+# or to provide custom queries or build logic.
+#
+# ******** NOTE ********
+# We have attempted to detect the languages in your repository. Please check
+# the language matrix defined below to confirm you have the correct set of
+# supported CodeQL languages.
+#
+name: "CodeQL"
+
+on:

push:
branches: [ master ]
pull_request:
The branches below must be a subset of the branches above
branches: [ master ]
schedule:
- cron: '22 8 * * 0'

+jobs:

analyze:
name: Analyze
runs-on: ubuntu-latest
permissions:
```
 actions: read
```
```
 contents: read
```
```
 security-events: write
```
strategy:
```
 fail-fast: false
```
```
 matrix:
```
```
   language: [ 'javascript' ]
```

   # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python' ]

```
   # Learn more:
```

   # https://docs.github.com/en/free-pro-team@latest/github/finding-security-vulnerabilities-and-errors-in-your-code/configuring-code-scanning#changing-the-languages-that-are-analyzed

steps:
- name: Checkout repository
```
 uses: actions/checkout@v2
```
Initializes the CodeQL tools for scanning.
- name: Initialize CodeQL
```
 uses: github/codeql-action/init@v1
```
```
 with:
```
```
   languages: ${{ matrix.language }}
```

   # If you wish to specify custom queries, you can do so here or in a config file.

   # By default, queries listed here will override any specified in a config file.

   # Prefix the list here with "+" to use these queries and those in the config file.

   # queries: ./path/to/local/query, your-org/your-repo/queries@main

Autobuild attempts to build any compiled languages (C/C++, C#, or Java).
If this step fails, then you should remove it and run the build manually (see below)
- name: Autobuild

 uses: github/codeql-action/autobuild@v1

ℹ️ Command-line programs to run using the OS shell.
📚 https://git.io/JvXDl
✏️ If the Autobuild fails above, remove it and uncomment the following three lines
and modify them (or add more) to build your code if your project
uses a compiled language
#- run: |
make bootstrap
make release
- name: Perform CodeQL Analysis
```
 uses: github/codeql-action/analyze@v1
```

From 83a461c Mon Sep 17 00:00:00 2001
From: apidwalin 84679338+Apidwalin@users.noreply.github.com
Date: Fri, 23 Jul 2021 09:19:40 +0700
Subject: [PATCH 2/4] SECURITY.md

Security Policy

Supported Versions

Use this section to tell people about which versions of your project are
currently being supported with security updates.

Version	Supported
5.1.x	✅
5.0.x	❌
4.0.x	✅
< 4.0	��

Reporting a Vulnerability

Use this section to tell people how to report a vulnerability.

Tell them where to go, how often they can expect to get an update on a
reported vulnerability, what to expect if the vulnerability is accepted or
declined, etc.

SECURITY.md | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
create mode 100644 SECURITY.md

diff --git a/SECURITY.md b/SECURITY.md
new file mode 100644
index 0000000..034e848
--- /dev/null
+++ b/SECURITY.md
@@ -0,0 +1,21 @@
+# Security Policy
+
+## Supported Versions
+
+Use this section to tell people about which versions of your project are
+currently being supported with security updates.
+
+| Version | Supported |
+| ------- | ------------------ |
+| 5.1.x | ✅ |
+| 5.0.x | ❌ |
+| 4.0.x | ✅ |
+| < 4.0 | ❌ |
+
+## Reporting a Vulnerability
+
+Use this section to tell people how to report a vulnerability.
+
+Tell them where to go, how often they can expect to get an update on a
+reported vulnerability, what to expect if the vulnerability is accepted or
+declined, etc.

From b52b6dc Mon Sep 17 00:00:00 2001
From: apidwalin 84679338+Apidwalin@users.noreply.github.com
Date: Fri, 23 Jul 2021 11:13:28 +0700
Subject: [PATCH 3/4] Create blank.yml

.github/workflows/blank.yml | 36 ++++++++++++++++++++++++++++++++++++
1 file changed, 36 insertions(+)
create mode 100644 .github/workflows/blank.yml

diff --git a/.github/workflows/blank.yml b/.github/workflows/blank.yml
new file mode 100644
index 0000000..f937a06
--- /dev/null
+++ b/.github/workflows/blank.yml
@@ -0,0 +1,36 @@
+# This is a basic workflow to help you get started with Actions
+
+name: CI
+
+# Controls when the workflow will run
+on:

Triggers the workflow on push or pull request events but only for the master branch
push:
branches: [ master ]
pull_request:
branches: [ master ]
Allows you to run this workflow manually from the Actions tab
workflow_dispatch:

+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:

This workflow contains a single job called "build"
build:
The type of runner that the job will run on
runs-on: ubuntu-latest
Steps represent a sequence of tasks that will be executed as part of the job
steps:

 # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it

```
 - uses: actions/checkout@v2
```

 # Runs a single command using the runners shell

```
 - name: Run a one-line script
```
```
   run: echo Hello, world!
```

 # Runs a set of commands using the runners shell

```
 - name: Run a multi-line script
```
```
   run: |
```
```
     echo Add other actions to build,
```

     echo test, and deploy your project.

From 2130ca7 Mon Sep 17 00:00:00 2001
From: apidwalin 84679338+Apidwalin@users.noreply.github.com
Date: Fri, 23 Jul 2021 11:17:57 +0700
Subject: [PATCH 4/4] Add files via upload

.DS_Store | Bin 0 -> 6148 bytes
app_authKey.py | 177 +++
key_api.txt | 3 +
models.py | 3107 ++++++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 3287 insertions(+)
create mode 100644 .DS_Store
create mode 100644 app_authKey.py
create mode 100644 key_api.txt
create mode 100644 models.py

diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 0000000000000000000000000000000000000000..a8976cb5df6626a8825a8a2092e19def77bbb6de
GIT binary patch
literal 6148
zcmeHKI|>3p3{6x-u(7n9D|mxJ^aNhOA7~civ3oe%cJ@7L6Fr(u#p!?-b^NMmVL!$
zBOGzZYLrm5gEV@<z}I6c5dFXPG%Gc#pjQY%iO``glCFs^2G!+n1f3WhJLC0sCJ zmI_b-DnJFO02TP8fc0M3U>L|q1*iZOcq(AuhXOaOiA|t?IuLvW0QQh}!f#FV6g<S
zCN_b{z%;19plXg78g%4K*44x&FzBK=d}uydb3##nI_@uCE?NT_sQ?vtRiGQ&k@f#M
z{KNeJO5%<RP=UWvKzp;rY>HRP-r9OO>$L^Ggj>xWZicl}5WF1&y&Yp??Re}(QCDn@
X^P1QMIvshZ1Nk#xy3nY=uN8Oz`K%R

literal 0
HcmV?d00001

diff --git a/app_authKey.py b/app_authKey.py
new file mode 100644
index 0000000..3d415c1
--- /dev/null
+++ b/app_authKey.py
@@ -0,0 +1,177 @@
+from flask import Flask, request, render_template, jsonify
+from io import BytesIO
+from captchaModel.model import load_model, inference
+# from waitress import serve
+import numpy as np
+import base64
+from PIL import Image
+from waitress import serve
+from paste.translogger import TransLogger
+import time
+import math
+
+sess, dectection_graph = load_model()
+app = Flask(name)
+
+# app.config['SECRET_KEY'] = 'secret key here'
+# app.config['HOST'] = '0.0.0.0'
+# app.config['DEBUG'] = True
+# app.config["CACHE_TYPE"] = "null"
+
+# change to "redis" and restart to cache again
+
+# some time later
+# cache.init_app(app)
+
+
+# @app.route('/')
+# def home():
+# return "Hello World"
+
+# def shutdown_server():
+# func = request.environ.get('werkzeug.server.shutdown')
+# if func is None:
+# raise RuntimeError('Not running with the Werkzeug Server')
+# func()
+
+# @app.route('/shutdown', methods=['POST'])
+# def shutdown():
+# shutdown_server()
+# return 'Server shutting down...'
+
+
+@app.route('/api/predict/', methods=['GET', 'POST','DELETE', 'PATCH'])
+def api_predict():

print(request.is_json)
image_base64 = request.form['image']
image = base64.b64decode(image_base64)
image = Image.open(BytesIO(image))
if image.mode != "RGB":
image.convert("RGB")
image_arr = np.array(image, dtype=np.uint8)
# print(image_arr)
start_date = time.time()
res = inference(sess, dectection_graph, image_arr)
end_date = time.time()
result_date = start_date - end_date
# print(res)
return jsonify(answer=res, status=True, captcha=res, time=format(math.floor(result_date)).replace("-","") + "s")
return {
"captcha": res,
"time": format(math.floor(result_date)).replace("-","") + "s"}
return jsonify(answer=res, status=True)
apiKeys = []
with open('key_api.txt', 'r') as listApiKeys:

   apiKeys = [listApiKey.rstrip() for listApiKey in listApiKeys.readlines()]

print(apiKey)
apiKey = 'Pong11299'
if request.is_json:
```
   data_json = request.get_json()
```
```
   if data_json['api_key'] in apiKeys:
```
```
       print('found')
```
```
       try:
```
```
           if data_json:
```

               image_base64 = data_json['image']

               image = base64.b64decode(image_base64)

               image = Image.open(BytesIO(image))

```
               if image.mode != "RGB":
```

                   image.convert("RGB")

               image_arr = np.array(image, dtype=np.uint8)

```
               # print(image_arr)
```

               res = inference(sess, dectection_graph, image_arr)

               return jsonify(answer=res, status=True)

```
       except Exception as e:
```

           return jsonify(answer="", status=False)

```
   else:
```

       return jsonify(answer="NoApiKey", status=False, text='Please Enter API KEY')

else:

   image_base64 = request.form['image']

   image = base64.b64decode(image_base64)

```
   image = Image.open(BytesIO(image))
```
```
   if image.mode != "RGB":
```
```
       image.convert("RGB")
```

   image_arr = np.array(image, dtype=np.uint8)

```
   # print(image_arr)
```
```
   start_date = time.time()
```

   res = inference(sess, dectection_graph, image_arr)

```
   end_date = time.time()
```
```
   result_date = start_date - end_date
```
```
   # print(res)
```
```
   return {
```
```
               "captcha": res, 
```

               "time": format(math.floor(result_date)).replace("-","") + "s"}

       # base64 = request.form['base64']

```
       # start_date = time.time()
```

       # captcha = Captcha_detection(base64)

```
       # end_date = time.time()
```

       # result_date = start_date - end_date

```
       # return {
```
```
       #     "captcha": captcha, 
```

       #     "time": format(math.floor(result_date)).replace("-","") + "s"

+@app.route('/' , methods=['GET', 'POST','DELETE', 'PATCH'])
+def home():

base64few = str(request.form['base64'])
image = base64.b64decode(base64few)
image = Image.open(BytesIO(image))
if image.mode != "RGB":
```
   image.convert("RGB")
```
image_arr = np.array(image, dtype=np.uint8)
start_date = time.time()
#captcha = Captcha_detection(base64)
res = inference(sess, dectection_graph, image_arr)
end_date = time.time()
result_date = start_date - end_date
#print('I have money {:,.2f} baht'.format(result_date))
return {
```
   "captcha": res, 
```

   "time": '{:,.2f}s'.format(result_date).replace("-","")

}

+@app.route('/api/images/', methods=['POST'])
+def api_images():

if request.is_json:
```
   try:
```
```
       data_json = request.get_json()
```
```
       if data_json:
```

           image_base64 = data_json['image']

           image = base64.b64decode(image_base64)

           image = Image.open(BytesIO(image))

```
           if image.mode != "RGB":
```
```
               image.convert("RGB")
```

           image_arr = np.array(image, dtype=np.uint8)

```
           # print(image_arr)
```

           res = inference(sess, dectection_graph, image_arr)

           return jsonify(answer=res, status=True)

```
   except Exception as e:
```

       return jsonify(answer="", status=False)

return jsonify(answer="", status=False)

+@app.route('/api/imgArr/', methods=['POST'])
+def api_imgArr():

print(request.get_json())

+if name == "main":

app.run(debug=True)
app.debug = False
app.config["CACHE_TYPE"] = "null"
app.run(host = '0.0.0.0',port=8080)
serve(TransLogger(app, setup_console_handler=False), threads=20, host = '0.0.0.0',port=5000)
serve(TransLogger(app, setup_console_handler=False), threads=40, host = '0.0.0.0',port=5000)

diff --git a/key_api.txt b/key_api.txt
new file mode 100644
index 0000000..227d6a4
--- /dev/null
+++ b/key_api.txt
@@ -0,0 +1,3 @@
+Pong11299
+Apidwalin
+bas2563
diff --git a/models.py b/models.py
new file mode 100644
index 0000000..20da8b9
--- /dev/null
+++ b/models.py
@@ -0,0 +1,3107 @@
+_instance = None
+
+ast_transformers = List([], help=

"""
A list of ast.NodeTransformer subclass instances, which will be applied
to user input before code is run.
"""
+).tag(config=True)

+autocall = Enum((0,1,2), default_value=0, help=

"""
Make IPython automatically call any callable object even if you didn't
type explicit parentheses. For example, 'str 43' becomes 'str(43)'
automatically. The value can be '0' to disable the feature, '1' for
'smart' autocall, where it is not applied if there are no more
arguments on the line, and '2' for 'full' autocall, where all callable
objects are automatically called (even if no arguments are present).
"""
+).tag(config=True)
+# TODO: remove all autoindent logic and put into frontends.
+# We can't do this yet because even runlines uses the autoindent.
+autoindent = Bool(True, help=
"""
Autoindent IPython code entered interactively.
"""
+).tag(config=True)

+automagic = Bool(True, help=

"""
Enable magic commands to be called without the leading %.
"""
+).tag(config=True)

+banner1 = Unicode(default_banner,

help="""The part of the banner to be printed before the profile"""
+).tag(config=True)
+banner2 = Unicode('',
help="""The part of the banner to be printed after the profile"""
+).tag(config=True)

+cache_size = Integer(1000, help=

"""
Set the size of the output cache. The default is 1000, you can
change it permanently in your config file. Setting it to 0 completely
disables the caching system, and the minimum value accepted is 3 (if
you provide a value less than 3, it is reset to 0 and a warning is
issued). This limit is defined because otherwise you'll spend more
time re-flushing a too small cache than working
"""
+).tag(config=True)
+color_info = Bool(True, help=
"""
Use colors for displaying information about objects. Because this
information is passed through a pager (like 'less'), and some pagers
get confused with color codes, this capability can be turned off.
"""
+).tag(config=True)
+colors = CaselessStrEnum(('Neutral', 'NoColor','LightBG','Linux'),

                    default_value='Neutral',

help="Set the color scheme (NoColor, Neutral, Linux, or LightBG)."
+).tag(config=True)
+debug = Bool(False).tag(config=True)
+disable_failing_post_execute = Bool(False,
help="Don't call post-execute functions that have failed in the past."
+).tag(config=True)
+display_formatter = Instance(DisplayFormatter, allow_none=True)
+displayhook_class = Type(DisplayHook)
+display_pub_class = Type(DisplayPublisher)

+sphinxify_docstring = Bool(False, help=

"""
Enables rich html representation of docstrings. (This requires the
docrepr module).
""").tag(config=True)

+@observe("sphinxify_docstring")
+def _sphinxify_docstring_changed(self, change):

if change['new']:

   warn("`sphinxify_docstring` is provisional since IPython 5.0 and might change in future versions." , ProvisionalWarning)

+enable_html_pager = Bool(False, help=

"""
(Provisional API) enables html representation in mime bundles sent
to pagers.
""").tag(config=True)

+@observe("enable_html_pager")
+def _enable_html_pager_changed(self, change):

if change['new']:

   warn("`enable_html_pager` is provisional since IPython 5.0 and might change in future versions.", ProvisionalWarning)

+data_pub_class = None
+
+exit_now = Bool(False)
+exiter = Instance(ExitAutocall)
+@default('exiter')
+def _exiter_default(self):

return ExitAutocall(self)
+# Monotonically increasing execution counter
+execution_count = Integer(1)
+filename = Unicode("")
+ipython_dir= Unicode('').tag(config=True) # Set to get_ipython_dir() in init

+# Input splitter, to transform input line by line and detect when a block
+# is ready to be executed.
+input_splitter = Instance('IPython.core.inputsplitter.IPythonInputSplitter',

                     (), {'line_input_checker': True})

+# This InputSplitter instance is used to transform completed cells before
+# running them. It allows cell magics to contain blank lines.
+input_transformer_manager = Instance('IPython.core.inputsplitter.IPythonInputSplitter',

                                (), {'line_input_checker': False})

+logstart = Bool(False, help=

"""
Start logging to the default log file in overwrite mode.
Use logappend to specify a log file to append logs to.
"""
+).tag(config=True)
+logfile = Unicode('', help=
"""
The name of the logfile to use.
"""
+).tag(config=True)
+logappend = Unicode('', help=
"""
Start logging to the given file in append mode.
Use logfile to specify a log file to overwrite logs to.
"""
+).tag(config=True)
+object_info_string_level = Enum((0,1,2), default_value=0,
+).tag(config=True)
+pdb = Bool(False, help=
"""
Automatically call the pdb debugger after every exception.
"""
+).tag(config=True)
+display_page = Bool(False,
help="""If True, anything that would be passed to the pager
will be displayed as regular output instead."""
+).tag(config=True)

+# deprecated prompt traits:
+
+prompt_in1 = Unicode('In [\#]: ',

help="Deprecated since IPython 4.0 and ignored since 5.0, set TerminalInteractiveShell.prompts object directly."
+).tag(config=True)
+prompt_in2 = Unicode(' .\D.: ',
help="Deprecated since IPython 4.0 and ignored since 5.0, set TerminalInteractiveShell.prompts object directly."
+).tag(config=True)
+prompt_out = Unicode('Out[\#]: ',
help="Deprecated since IPython 4.0 and ignored since 5.0, set TerminalInteractiveShell.prompts object directly."
+).tag(config=True)
+prompts_pad_left = Bool(True,
help="Deprecated since IPython 4.0 and ignored since 5.0, set TerminalInteractiveShell.prompts object directly."
+).tag(config=True)

+@observe('prompt_in1', 'prompt_in2', 'prompt_out', 'prompt_pad_left')
+def _prompt_trait_changed(self, change):

name = change['name']
warn("InteractiveShell.{name} is deprecated since IPython 4.0"

    " and ignored since 5.0, set TerminalInteractiveShell.prompts"

    " object directly.".format(name=name))

protect against weird cases where self.config may not exist:

+show_rewritten_input = Bool(True,

help="Show rewritten input, e.g. for autocall."
+).tag(config=True)

+quiet = Bool(False).tag(config=True)
+
+history_length = Integer(10000,

help='Total length of command history'
+).tag(config=True)

+history_load_length = Integer(1000, help=

"""
The number of saved history entries to be loaded
into the history buffer at startup.
"""
+).tag(config=True)

+ast_node_interactivity = Enum(['all', 'last', 'last_expr', 'none', 'last_expr_or_assign'],

                         default_value='last_expr',

```
                         help="""
```
'all', 'last', 'last_expr' or 'none', 'last_expr_or_assign' specifying
which nodes should be run interactively (displaying output from expressions).
"""
+).tag(config=True)

+# TODO: this part of prompt management should be moved to the frontends.
+# Use custom TraitTypes that convert '0'->'' and '\n'->'\n'
+separate_in = SeparateUnicode('\n').tag(config=True)
+separate_out = SeparateUnicode('').tag(config=True)
+separate_out2 = SeparateUnicode('').tag(config=True)
+wildcards_case_sensitive = Bool(True).tag(config=True)
+xmode = CaselessStrEnum(('Context','Plain', 'Verbose'),

                   default_value='Context',

                   help="Switch modes for the IPython exception handlers."

```
                   ).tag(config=True)
```

+# Subcomponents of InteractiveShell
+alias_manager = Instance('IPython.core.alias.AliasManager', allow_none=True)
+prefilter_manager = Instance('IPython.core.prefilter.PrefilterManager', allow_none=True)
+builtin_trap = Instance('IPython.core.builtin_trap.BuiltinTrap', allow_none=True)
+display_trap = Instance('IPython.core.display_trap.DisplayTrap', allow_none=True)
+extension_manager = Instance('IPython.core.extensions.ExtensionManager', allow_none=True)
+payload_manager = Instance('IPython.core.payload.PayloadManager', allow_none=True)
+history_manager = Instance('IPython.core.history.HistoryAccessorBase', allow_none=True)
+magics_manager = Instance('IPython.core.magic.MagicsManager', allow_none=True)
+
+profile_dir = Instance('IPython.core.application.ProfileDir', allow_none=True)
+@Property
+def profile(self):

if self.profile_dir is not None:

   name = os.path.basename(self.profile_dir.location)

```
   return name.replace('profile_','')
```

+# Private interface
+_post_execute = Dict()
+
+# Tracks any GUI loop loaded for pylab
+pylab_gui_select = None
+
+last_execution_succeeded = Bool(True, help='Did last executed command succeeded')
+
+last_execution_result = Instance('IPython.core.interactiveshell.ExecutionResult', help='Result of executing the last command', allow_none=True)
+
+def init(self, ipython_dir=None, profile_dir=None,

        user_module=None, user_ns=None,

        custom_exceptions=((), None), **kwargs):

This is where traits with a config_key argument are updated
from the values on config.
super(InteractiveShell, self).init(**kwargs)
if 'PromptManager' in self.config:

   warn('As of IPython 5.0 `PromptManager` config will have no effect'

        ' and has been replaced by TerminalInteractiveShell.prompts_class')

self.configurables = [self]
These are relatively independent and stateless
self.init_ipython_dir(ipython_dir)
self.init_profile_dir(profile_dir)
self.init_instance_attrs()
self.init_environment()
Check if we're in a virtualenv, and set up sys.path.
self.init_virtualenv()
Create namespaces (user_ns, user_global_ns, etc.)
self.init_create_namespaces(user_module, user_ns)
This has to be done after init_create_namespaces because it uses
something in self.user_ns, but before init_sys_modules, which
is the first thing to modify sys.
TODO: When we override sys.stdout and sys.stderr before this class
is created, we are saving the overridden ones here. Not sure if this
is what we want to do.
self.save_sys_module_state()
self.init_sys_modules()
While we're trying to have each part of the code directly access what
it needs without keeping redundant references to objects, we have too
much legacy code that expects ip.db to exist.
self.db = PickleShareDB(os.path.join(self.profile_dir.location, 'db'))
self.init_history()
self.init_encoding()
self.init_prefilter()
self.init_syntax_highlighting()
self.init_hooks()
self.init_events()
self.init_pushd_popd_magic()
self.init_user_ns()
self.init_logger()
self.init_builtins()
The following was in post_config_initialization
self.init_inspector()
self.raw_input_original = input
self.init_completer()
TODO: init_io() needs to happen before init_traceback handlers
because the traceback handlers hardcode the stdout/stderr streams.
This logic in in debugger.Pdb and should eventually be changed.
self.init_io()
self.init_traceback_handlers(custom_exceptions)
self.init_prompts()
self.init_display_formatter()
self.init_display_pub()
self.init_data_pub()
self.init_displayhook()
self.init_magics()
self.init_alias()
self.init_logstart()
self.init_pdb()
self.init_extension_manager()
self.init_payload()
self.init_deprecation_warnings()
self.hooks.late_startup_hook()
self.events.trigger('shell_initialized', self)
atexit.register(self.atexit_operations)

+def get_ipython(self):

"""Return the currently running IPython instance."""
return self

+#-------------------------------------------------------------------------
+# Trait changed handlers
+#-------------------------------------------------------------------------
+@observe('ipython_dir')
+def _ipython_dir_changed(self, change):

ensure_dir_exists(change['new'])

+def set_autoindent(self,value=None):

"""Set the autoindent flag.
If called with no arguments, it acts as a toggle."""
if value is None:

   self.autoindent = not self.autoindent

else:
```
   self.autoindent = value
```

+#-------------------------------------------------------------------------
+# init_* methods called by init
+#-------------------------------------------------------------------------
+
+def init_ipython_dir(self, ipython_dir):

if ipython_dir is not None:
```
   self.ipython_dir = ipython_dir
```
```
   return
```
self.ipython_dir = get_ipython_dir()

+def init_profile_dir(self, profile_dir):

if profile_dir is not None:
```
   self.profile_dir = profile_dir
```
```
   return
```
self.profile_dir =\

   ProfileDir.create_profile_dir_by_name(self.ipython_dir, 'default')

+def init_instance_attrs(self):

self.more = False
command compiler
self.compile = CachingCompiler()
Make an empty namespace, which extension writers can rely on both
existing and NEVER being used by ipython itself. This gives them a
convenient location for storing additional information and state
their extensions may require, without fear of collisions with other
ipython names that may develop later.
self.meta = Struct()
Temporary files used for various purposes. Deleted at exit.
self.tempfiles = []
self.tempdirs = []
keep track of where we started running (mainly for crash post-mortem)
This is not being used anywhere currently.
self.starting_dir = os.getcwd()
Indentation management
self.indent_current_nsp = 0
Dict to track post-execution functions that have been registered
self._post_execute = {}

+def init_environment(self):

"""Any changes we need to make to the user's environment."""
pass

+def init_encoding(self):

Get system encoding at startup time. Certain terminals (like Emacs
under Win32 have it set to None, and we need to have a known valid
encoding to use in the raw_input() method
try:

   self.stdin_encoding = sys.stdin.encoding or 'ascii'

except AttributeError:
```
   self.stdin_encoding = 'ascii'
```

+@observe('colors')
+def init_syntax_highlighting(self, changes=None):

Python source parser/formatter for syntax highlighting
pyformat = PyColorize.Parser(style=self.colors, parent=self).format
self.pycolorize = lambda src: pyformat(src,'str')

+def refresh_style(self):

No-op here, used in subclass
pass

+def init_pushd_popd_magic(self):

for pushd/popd management
self.home_dir = get_home_dir()
self.dir_stack = []

+def init_logger(self):

self.logger = Logger(self.home_dir, logfname='ipython_log.py',
```
                    logmode='rotate')
```

+def init_logstart(self):

"""Initialize logging in case it was requested at the command line.
"""
if self.logappend:

   self.magic('logstart %s append' % self.logappend)

elif self.logfile:

   self.magic('logstart %s' % self.logfile)

elif self.logstart:
```
   self.magic('logstart')
```

+def init_deprecation_warnings(self):

"""
register default filter for deprecation warning.
This will allow deprecation warning of function used interactively to show
warning to users, and still hide deprecation warning from libraries import.
"""
warnings.filterwarnings("default", category=DeprecationWarning, module=self.user_ns.get("name"))

+def init_builtins(self):

A single, static flag that we set to True. Its presence indicates
that an IPython shell has been created, and we make no attempts at
removing on exit or representing the existence of more than one
IPython at a time.
builtin_mod.dict['IPYTHON'] = True
builtin_mod.dict['display'] = display
self.builtin_trap = BuiltinTrap(shell=self)

+@observe('colors')
+def init_inspector(self, changes=None):

Object inspector
self.inspector = oinspect.Inspector(oinspect.InspectColors,

                                   PyColorize.ANSICodeColors,

                                   self.colors,

                                   self.object_info_string_level)

+def init_io(self):

This will just use sys.stdout and sys.stderr. If you want to
override sys.stdout and sys.stderr themselves, you need to do that
before instantiating this class, because io holds onto
references to the underlying streams.
io.std* are deprecated, but don't show our own deprecation warnings
during initialization of the deprecated API.
with warnings.catch_warnings():

   warnings.simplefilter('ignore', DeprecationWarning)

```
   io.stdout = io.IOStream(sys.stdout)
```
```
   io.stderr = io.IOStream(sys.stderr)
```

+def init_prompts(self):

Set system prompts, so that scripts can decide if they are running
interactively.
sys.ps1 = 'In : '
sys.ps2 = '...: '
sys.ps3 = 'Out: '

+def init_display_formatter(self):

self.display_formatter = DisplayFormatter(parent=self)
self.configurables.append(self.display_formatter)

+def init_display_pub(self):

self.display_pub = self.display_pub_class(parent=self)
self.configurables.append(self.display_pub)

+def init_data_pub(self):

if not self.data_pub_class:
```
   self.data_pub = None
```
```
   return
```
self.data_pub = self.data_pub_class(parent=self)
self.configurables.append(self.data_pub)

+def init_displayhook(self):

Initialize displayhook, set in/out prompts and printing system
self.displayhook = self.displayhook_class(
```
   parent=self,
```
```
   shell=self,
```
```
   cache_size=self.cache_size,
```
)
self.configurables.append(self.displayhook)
This is a context manager that installs/revmoes the displayhook at
the appropriate time.
self.display_trap = DisplayTrap(hook=self.displayhook)

+def init_virtualenv(self):

"""Add a virtualenv to sys.path so the user can import modules from it.
This isn't perfect: it doesn't use the Python interpreter with which the
virtualenv was built, and it ignores the --no-site-packages option. A
warning will appear suggesting the user installs IPython in the
virtualenv, but for many cases, it probably works well enough.
Adapted from code snippets online.
http://blog.ufsoft.org/2009/1/29/ipython-and-virtualenv
"""
if 'VIRTUAL_ENV' not in os.environ:
```
   # Not in a virtualenv
```
```
   return
```
p = os.path.normcase(sys.executable)
p_venv = os.path.normcase(os.environ['VIRTUAL_ENV'])
executable path should end like /bin/python or \scripts\python.exe
p_exe_up2 = os.path.dirname(os.path.dirname(p))
if p_exe_up2 and os.path.samefile(p_exe_up2, p_venv):

   # Our exe is inside the virtualenv, don't need to do anything.

```
   return
```
fallback venv detection:
stdlib venv may symlink sys.executable, so we can't use realpath.
but others can symlink to the venv Python, so we can't just use sys.executable.
So we just check every item in the symlink tree (generally <= 3)
paths = [p]
while os.path.islink(p):

   p = os.path.normcase(os.path.join(os.path.dirname(p), os.readlink(p)))

```
   paths.append(p)
```
In Cygwin paths like "c:..." and '\cygdrive\c...' are possible
if p_venv.startswith('\cygdrive'):
```
   p_venv = p_venv[11:]
```
elif len(p_venv) >= 2 and p_venv[1] == ':':
```
   p_venv = p_venv[2:]
```
if any(p_venv in p for p in paths):

   # Running properly in the virtualenv, don't need to do anything

```
   return
```
warn("Attempting to work in a virtualenv. If you encounter problems, please "

    "install IPython inside the virtualenv.")

if sys.platform == "win32":

   virtual_env = os.path.join(os.environ['VIRTUAL_ENV'], 'Lib', 'site-packages')

else:

   virtual_env = os.path.join(os.environ['VIRTUAL_ENV'], 'lib',

              'python%d.%d' % sys.version_info[:2], 'site-packages')

import site
sys.path.insert(0, virtual_env)
site.addsitedir(virtual_env)

+#-------------------------------------------------------------------------
+# Things related to injections into the sys module
+#-------------------------------------------------------------------------
+
+def save_sys_module_state(self):

"""Save the state of hooks in the sys module.
This has to be called after self.user_module is created.
"""
self._orig_sys_module_state = {'stdin': sys.stdin,

                              'stdout': sys.stdout,

                              'stderr': sys.stderr,

                              'excepthook': sys.excepthook}

self._orig_sys_modules_main_name = self.user_module.name
self._orig_sys_modules_main_mod = sys.modules.get(self.user_module.name)

+def restore_sys_module_state(self):

"""Restore the state of the sys module."""
try:

   for k, v in self._orig_sys_module_state.items():

```
       setattr(sys, k, v)
```
except AttributeError:
```
   pass
```
Reset what what done in self.init_sys_modules
if self._orig_sys_modules_main_mod is not None:

   sys.modules[self._orig_sys_modules_main_name] = self._orig_sys_modules_main_mod

+#-------------------------------------------------------------------------
+# Things related to the banner
+#-------------------------------------------------------------------------
+
+@Property
+def banner(self):

banner = self.banner1
if self.profile and self.profile != 'default':

   banner += '\nIPython profile: %s\n' % self.profile

if self.banner2:
```
   banner += '\n' + self.banner2
```
return banner

+def show_banner(self, banner=None):

if banner is None:
```
   banner = self.banner
```
sys.stdout.write(banner)

+#-------------------------------------------------------------------------
+# Things related to hooks
+#-------------------------------------------------------------------------
+
+def init_hooks(self):

hooks holds pointers used for user-side customizations
self.hooks = Struct()
self.strdispatchers = {}
Set all default hooks, defined in the IPython.hooks module.
hooks = IPython.core.hooks
for hook_name in hooks.all:

   # default hooks have priority 100, i.e. low; user hooks should have

```
   # 0-100 priority
```

   self.set_hook(hook_name,getattr(hooks,hook_name), 100, _warn_deprecated=False)

if self.display_page:

   self.set_hook('show_in_pager', page.as_hook(page.display_page), 90)

+def set_hook(self,name,hook, priority=50, str_key=None, re_key=None,

```
        _warn_deprecated=True):
```
"""set_hook(name,hook) -> sets an internal IPython hook.
IPython exposes some of its internal API as user-modifiable hooks. By
adding your function to one of these hooks, you can modify IPython's
behavior to call at runtime your own routines."""
At some point in the future, this should validate the hook before it
accepts it. Probably at least check that the hook takes the number
of args it's supposed to.
f = types.MethodType(hook,self)
check if the hook is for strdispatcher first
if str_key is not None:

   sdp = self.strdispatchers.get(name, StrDispatch())

```
   sdp.add_s(str_key, f, priority )
```
```
   self.strdispatchers[name] = sdp
```
```
   return
```
if re_key is not None:

   sdp = self.strdispatchers.get(name, StrDispatch())

   sdp.add_re(re.compile(re_key), f, priority )

```
   self.strdispatchers[name] = sdp
```
```
   return
```
dp = getattr(self.hooks, name, None)
if name not in IPython.core.hooks.all:

   print("Warning! Hook '%s' is not one of %s" % \

         (name, IPython.core.hooks.__all__ ))

if _warn_deprecated and (name in IPython.core.hooks.deprecated):

   alternative = IPython.core.hooks.deprecated[name]

   warn("Hook {} is deprecated. Use {} instead.".format(name, alternative), stacklevel=2)

if not dp:

   dp = IPython.core.hooks.CommandChainDispatcher()

try:
```
   dp.add(f,priority)
```
except AttributeError:

   # it was not commandchain, plain old func - replace

```
   dp = f
```
setattr(self.hooks,name, dp)

+#-------------------------------------------------------------------------
+# Things related to events
+#-------------------------------------------------------------------------
+
+def init_events(self):

self.events = EventManager(self, available_events)
self.events.register("pre_execute", self._clear_warning_registry)

+def register_post_execute(self, func):

"""DEPRECATED: Use ip.events.register('post_run_cell', func)
Register a function for calling after code execution.
"""
warn("ip.register_post_execute is deprecated, use "

    "ip.events.register('post_run_cell', func) instead.", stacklevel=2)

self.events.register('post_run_cell', func)

+def _clear_warning_registry(self):

clear the warning registry, so that different code blocks with
overlapping line number ranges don't cause spurious suppression of
warnings (see gh-6611 for details)
if "warningregistry" in self.user_global_ns:

   del self.user_global_ns["__warningregistry__"]

+#-------------------------------------------------------------------------
+# Things related to the "main" module
+#-------------------------------------------------------------------------
+
+def new_main_mod(self, filename, modname):

"""Return a new 'main' module object for user code execution.
filename should be the path of the script which will be run in the
module. Requests with the same filename will get the same module, with
its namespace cleared.
modname should be the module name - normally either 'main' or
the basename of the file without the extension.
When scripts are executed via %run, we must keep a reference to their
main module around so that Python doesn't
clear it, rendering references to module globals useless.
This method keeps said reference in a private dict, keyed by the
absolute path of the script. This way, for multiple executions of the
same script we only keep one copy of the namespace (the last one),
thus preventing memory leaks from old references while allowing the
objects from the last execution to be accessible.
"""
filename = os.path.abspath(filename)
try:

   main_mod = self._main_mod_cache[filename]

except KeyError:

   main_mod = self._main_mod_cache[filename] = types.ModuleType(

```
               modname,
```

               doc="Module created for script run in IPython")

else:
```
   main_mod.__dict__.clear()
```
```
   main_mod.__name__ = modname
```
main_mod.file = filename
It seems pydoc (and perhaps others) needs any module instance to
implement a nonzero method
main_mod.nonzero = lambda : True
return main_mod

+def clear_main_mod_cache(self):

"""Clear the cache of main modules.
Mainly for use by utilities like %reset.
Examples
In [15]: import IPython
In [16]: m = _ip.new_main_mod(IPython.file, 'IPython')
In [17]: len(_ip._main_mod_cache) > 0
Out[17]: True
In [18]: _ip.clear_main_mod_cache()
In [19]: len(_ip._main_mod_cache) == 0
Out[19]: True
"""
self._main_mod_cache.clear()

+#-------------------------------------------------------------------------
+# Things related to debugging
+#-------------------------------------------------------------------------
+
+def init_pdb(self):

Set calling of pdb on exceptions
self.call_pdb is a property
self.call_pdb = self.pdb

+def _get_call_pdb(self):

return self._call_pdb

+def _set_call_pdb(self,val):
+

if val not in (0,1,False,True):

   raise ValueError('new call_pdb value must be boolean')

store value in instance
self._call_pdb = val
notify the actual exception handlers
self.InteractiveTB.call_pdb = val

+call_pdb = property(_get_call_pdb,_set_call_pdb,None,

               'Control auto-activation of pdb at exceptions')

+def debugger(self,force=False):

"""Call the pdb debugger.
Keywords:

 - force(False): by default, this routine checks the instance call_pdb

   flag and does not actually invoke the debugger if the flag is false.

   The 'force' option forces the debugger to activate even if the flag

```
   is false.
```
"""
if not (force or self.call_pdb):
```
   return
```
if not hasattr(sys,'last_traceback'):

   error('No traceback has been produced, nothing to debug.')

```
   return
```
self.InteractiveTB.debugger(force=True)

+#-------------------------------------------------------------------------
+# Things related to IPython's various namespaces
+#-------------------------------------------------------------------------
+default_user_namespaces = True
+
+def init_create_namespaces(self, user_module=None, user_ns=None):

Create the namespace where the user will operate. user_ns is
normally the only one used, and it is passed to the exec calls as
the locals argument. But we do carry a user_global_ns namespace
given as the exec 'globals' argument, This is useful in embedding
situations where the ipython shell opens in a context where the
distinction between locals and globals is meaningful. For
non-embedded contexts, it is just the same object as the user_ns dict.
FIXME. For some strange reason, builtins is showing up at user
level as a dict instead of a module. This is a manual fix, but I
should really track down where the problem is coming from. Alex
Schmolck reported this problem first.
A useful post by Alex Martelli on this topic:
Re: inconsistent value from builtins
Von: Alex Martelli aleaxit@yahoo.com
Datum: Freitag 01 Oktober 2004 04:45:34 nachmittags/abends
Gruppen: comp.lang.python
Michael Hohn hohn@hooknose.lbl.gov wrote:
> >>> print type(builtin_check.get_global_binding('builtins'))
> <type 'dict'>
> >>> print type(builtins)
> <type 'module'>
> Is this difference in return value intentional?
Well, it's documented that 'builtins' can be either a dictionary
or a module, and it's been that way for a long time. Whether it's
intentional (or sensible), I don't know. In any case, the idea is
that if you need to access the built-in namespace directly, you
should start with "import builtin" (note, no 's') which will
definitely give you a module. Yeah, it's somewhat confusing:-(.
These routines return a properly built module and dict as needed by
the rest of the code, and can also be used by extension writers to
generate properly initialized namespaces.
if (user_ns is not None) or (user_module is not None):

   self.default_user_namespaces = False

self.user_module, self.user_ns = self.prepare_user_module(user_module, user_ns)
A record of hidden variables we have added to the user namespace, so
we can list later only variables defined in actual interactive use.
self.user_ns_hidden = {}
Now that FakeModule produces a real module, we've run into a nasty
problem: after script execution (via %run), the module where the user
code ran is deleted. Now that this object is a true module (needed
so doctest and other tools work correctly), the Python module
teardown mechanism runs over it, and sets to None every variable
present in that module. Top-level references to objects from the
script survive, because the user_ns is updated with them. However,
calling functions defined in the script that use other things from
the script will fail, because the function's closure had references
to the original objects, which are now all None. So we must protect
these modules from deletion by keeping a cache.
To avoid keeping stale modules around (we only need the one from the
last run), we use a dict keyed with the full path to the script, so
only the last version of the module is held in the cache. Note,
however, that we must cache the module namespace contents (their
dict). Because if we try to cache the actual modules, old ones
(uncached) could be destroyed while still holding references (such as
those held by GUI objects that tend to be long-lived)>
The %reset command will flush this cache. See the cache_main_mod()
and clear_main_mod_cache() methods for details on use.
This is the cache used for 'main' namespaces
self._main_mod_cache = {}
A table holding all the namespaces IPython deals with, so that
introspection facilities can search easily.
self.ns_table = {'user_global':self.user_module.dict,

                'user_local':self.user_ns,

                'builtin':builtin_mod.__dict__

```
                }
```

+@Property
+def user_global_ns(self):

return self.user_module.dict

+def prepare_user_module(self, user_module=None, user_ns=None):

"""Prepare the module and namespace in which user code will be run.
When IPython is started normally, both parameters are None: a new module
is created automatically, and its dict used as the namespace.
If only user_module is provided, its dict is used as the namespace.
If only user_ns is provided, a dummy module is created, and user_ns
becomes the global namespace. If both are provided (as they may be
when embedding), user_ns is the local namespace, and user_module
provides the global namespace.
Parameters
user_module : module, optional

   The current user module in which IPython is being run. If None,

```
   a clean module will be created.
```
user_ns : dict, optional

   A namespace in which to run interactive commands.

Returns
A tuple of user_module and user_ns, each properly initialised.
"""
if user_module is None and user_ns is not None:

   user_ns.setdefault("__name__", "__main__")

```
   user_module = DummyMod()
```
```
   user_module.__dict__ = user_ns
```
if user_module is None:

   user_module = types.ModuleType("__main__",

       doc="Automatically created module for IPython interactive environment")

We must ensure that builtin (without the final 's') is always
available and pointing to the builtin module. For more details:
http://mail.python.org/pipermail/python-dev/2001-April/014068.html
user_module.dict.setdefault('builtin', builtin_mod)
user_module.dict.setdefault('builtins', builtin_mod)
if user_ns is None:
```
   user_ns = user_module.__dict__
```
return user_module, user_ns

+def init_sys_modules(self):

We need to insert into sys.modules something that looks like a
module but which accesses the IPython namespace, for shelve and
pickle to work interactively. Normally they rely on getting
everything out of main, but for embedding purposes each IPython
instance has its own private namespace, so we can't go shoving
everything into main.
note, however, that we should only do this for non-embedded
ipythons, which really mimic the main.dict with their own
namespace. Embedded instances, on the other hand, should not do
this because they need to manage the user local/global namespaces
only, but they live within a 'normal' main (meaning, they
shouldn't overtake the execution environment of the script they're
embedded in).
This is overridden in the InteractiveShellEmbed subclass to a no-op.
main_name = self.user_module.name
sys.modules[main_name] = self.user_module

+def init_user_ns(self):

"""Initialize all user-visible namespaces to their minimum defaults.
Certain history lists are also initialized here, as they effectively
act as user namespaces.
Notes
All data structures here are only filled in, they are NOT reset by this
method. If they were not empty before, data will simply be added to
them.
"""
This function works in two parts: first we put a few things in
user_ns, and we sync that contents into user_ns_hidden so that these
initial variables aren't shown by %who. After the sync, we add the
rest of what we do want the user to see with %who even on a new
session (probably nothing, so they really only see their own stuff)
The user dict must always have a builtin reference to the
Python standard builtin namespace, which must be imported.
This is so that certain operations in prompt evaluation can be
reliably executed with builtins. Note that we can NOT use
builtins (note the 's'), because that can either be a dict or a
module, and can even mutate at runtime, depending on the context
(Python makes no guarantees on it). In contrast, builtin is
always a module object, though it must be explicitly imported.
For more details:
http://mail.python.org/pipermail/python-dev/2001-April/014068.html
ns = {}
make global variables for user access to the histories
ns['_ih'] = self.history_manager.input_hist_parsed
ns['_oh'] = self.history_manager.output_hist
ns['_dh'] = self.history_manager.dir_hist
user aliases to input and output histories. These shouldn't show up
in %who, as they can have very large reprs.
ns['In'] = self.history_manager.input_hist_parsed
ns['Out'] = self.history_manager.output_hist
Store myself as the public api!!!
ns['get_ipython'] = self.get_ipython
ns['exit'] = self.exiter
ns['quit'] = self.exiter
Sync what we've added so far to user_ns_hidden so these aren't seen
by %who
self.user_ns_hidden.update(ns)
Anything put into ns now would show up in %who. Think twice before
putting anything here, as we really want %who to show the user their
stuff, not our variables.
Finally, update the real user's namespace
self.user_ns.update(ns)

+@Property
+def all_ns_refs(self):

"""Get a list of references to all the namespace dictionaries in which
IPython might store a user-created object.
Note that this does not include the displayhook, which also caches
objects from the output."""
return [self.user_ns, self.user_global_ns, self.user_ns_hidden] + \

      [m.__dict__ for m in self._main_mod_cache.values()]

+def reset(self, new_session=True):

"""Clear all internal namespaces, and attempt to release references to
user objects.
If new_session is True, a new history session will be opened.
"""
Clear histories
self.history_manager.reset(new_session)
Reset counter used to index all histories
if new_session:
```
   self.execution_count = 1
```
Reset last execution result
self.last_execution_succeeded = True
self.last_execution_result = None
Flush cached output items
if self.displayhook.do_full_cache:
```
   self.displayhook.flush()
```
The main execution namespaces must be cleared very carefully,
skipping the deletion of the builtin-related keys, because doing so
would cause errors in many object's del methods.
if self.user_ns is not self.user_global_ns:
```
   self.user_ns.clear()
```
ns = self.user_global_ns
drop_keys = set(ns.keys())
drop_keys.discard('builtin')
drop_keys.discard('builtins')
drop_keys.discard('name')
for k in drop_keys:
```
   del ns[k]
```
self.user_ns_hidden.clear()
Restore the user namespaces to minimal usability
self.init_user_ns()
Restore the default and user aliases
self.alias_manager.clear_aliases()
self.alias_manager.init_aliases()
Flush the private list of module references kept for script
execution protection
self.clear_main_mod_cache()

+def del_var(self, varname, by_name=False):

"""Delete a variable from the various namespaces, so that, as
far as possible, we're not keeping any hidden references to it.
Parameters
varname : str
```
   The name of the variable to delete.
```
by_name : bool

   If True, delete variables with the given name in each

   namespace. If False (default), find the variable in the user

   namespace, and delete references to it.

"""
if varname in ('builtin', 'builtins'):

   raise ValueError("Refusing to delete %s" % varname)

ns_refs = self.all_ns_refs
if by_name: # Delete by name
```
   for ns in ns_refs:
```
```
       try:
```
```
           del ns[varname]
```
```
       except KeyError:
```
```
           pass
```
else: # Delete by object
```
   try:
```
```
       obj = self.user_ns[varname]
```
```
   except KeyError:
```

       raise NameError("name '%s' is not defined" % varname)

```
   # Also check in output history
```

   ns_refs.append(self.history_manager.output_hist)

```
   for ns in ns_refs:
```

       to_delete = [n for n, o in ns.items() if o is obj]

```
       for name in to_delete:
```
```
           del ns[name]
```

   # Ensure it is removed from the last execution result

   if self.last_execution_result.result is obj:

       self.last_execution_result = None

   # displayhook keeps extra references, but not in a dictionary

```
   for name in ('_', '__', '___'):
```

       if getattr(self.displayhook, name) is obj:

           setattr(self.displayhook, name, None)

+def reset_selective(self, regex=None):

"""Clear selective variables from internal namespaces based on a
specified regular expression.
Parameters
regex : string or compiled pattern, optional

   A regular expression pattern that will be used in searching

   variable names in the users namespaces.

"""
if regex is not None:
```
   try:
```
```
       m = re.compile(regex)
```
```
   except TypeError:
```

       raise TypeError('regex must be a string or compiled pattern')

   # Search for keys in each namespace that match the given regex

   # If a match is found, delete the key/value pair.

```
   for ns in self.all_ns_refs:
```
```
       for var in ns:
```
```
           if m.search(var):
```
```
               del ns[var]
```

+def push(self, variables, interactive=True):

"""Inject a group of variables into the IPython user namespace.
Parameters
variables : dict, str or list/tuple of str

   The variables to inject into the user's namespace.  If a dict, a

   simple update is done.  If a str, the string is assumed to have

   variable names separated by spaces.  A list/tuple of str can also

   be used to give the variable names.  If just the variable names are

   give (list/tuple/str) then the variable values looked up in the

```
   callers frame.
```
interactive : bool

   If True (default), the variables will be listed with the ``who``

```
   magic.
```
"""
vdict = None
We need a dict of name/value pairs to do namespace updates.
if isinstance(variables, dict):
```
   vdict = variables
```
elif isinstance(variables, (str, list, tuple)):
```
   if isinstance(variables, str):
```
```
       vlist = variables.split()
```
```
   else:
```
```
       vlist = variables
```
```
   vdict = {}
```
```
   cf = sys._getframe(1)
```
```
   for name in vlist:
```
```
       try:
```

           vdict[name] = eval(name, cf.f_globals, cf.f_locals)

```
       except:
```

           print('Could not get variable %s from %s' %

                  (name,cf.f_code.co_name))

else:

   raise ValueError('variables must be a dict/str/list/tuple')

Propagate variables to user namespace
self.user_ns.update(vdict)
And configure interactive visibility
user_ns_hidden = self.user_ns_hidden
if interactive:
```
   for name in vdict:
```
```
       user_ns_hidden.pop(name, None)
```
else:
```
   user_ns_hidden.update(vdict)
```

+def drop_by_id(self, variables):

"""Remove a dict of variables from the user namespace, if they are the
same as the values in the dictionary.
This is intended for use by extensions: variables that they've added can
be taken back out if they are unloaded, without removing any that the
user has overwritten.
Parameters
variables : dict

 A dictionary mapping object names (as strings) to the objects.

"""
for name, obj in variables.items():

   if name in self.user_ns and self.user_ns[name] is obj:

```
       del self.user_ns[name]
```

       self.user_ns_hidden.pop(name, None)

+#-------------------------------------------------------------------------
+# Things related to object introspection
+#-------------------------------------------------------------------------
+
+def _ofind(self, oname, namespaces=None):

"""Find an object in the available namespaces.
self._ofind(oname) -> dict with keys: found,obj,ospace,ismagic
Has special code to detect magic functions.
"""
oname = oname.strip()
if not oname.startswith(ESC_MAGIC) and \

       not oname.startswith(ESC_MAGIC2) and \

       not all(a.isidentifier() for a in oname.split(".")):

```
   return {'found': False}
```
if namespaces is None:
```
   # Namespaces to search in:
```

   # Put them in a list. The order is important so that we

   # find things in the same order that Python finds them.

   namespaces = [ ('Interactive', self.user_ns),

                  ('Interactive (global)', self.user_global_ns),

                  ('Python builtin', builtin_mod.__dict__),

```
                  ]
```
ismagic = False
isalias = False
found = False
ospace = None
parent = None
obj = None
Look for the given name by splitting it in parts. If the head is
found, then we look for all the remaining parts as members, and only
declare success if we can find them all.
oname_parts = oname.split('.')
oname_head, oname_rest = oname_parts[0],oname_parts[1:]
for nsname,ns in namespaces:
```
   try:
```
```
       obj = ns[oname_head]
```
```
   except KeyError:
```
```
       continue
```
```
   else:
```

       for idx, part in enumerate(oname_rest):

```
           try:
```
```
               parent = obj
```

               # The last part is looked up in a special way to avoid

               # descriptor invocation as it may raise or have side

```
               # effects.
```

               if idx == len(oname_rest) - 1:

                   obj = self._getattr_property(obj, part)

```
               else:
```

                   obj = getattr(obj, part)

```
           except:
```

               # Blanket except b/c some badly implemented objects

               # allow __getattr__ to raise exceptions other than

               # AttributeError, which then crashes IPython.

```
               break
```
```
       else:
```

           # If we finish the for loop (no break), we got all members

```
           found = True
```
```
           ospace = nsname
```
```
           break  # namespace loop
```
Try to see if it's magic
if not found:
```
   obj = None
```
```
   if oname.startswith(ESC_MAGIC2):
```

       oname = oname.lstrip(ESC_MAGIC2)

       obj = self.find_cell_magic(oname)

```
   elif oname.startswith(ESC_MAGIC):
```
```
       oname = oname.lstrip(ESC_MAGIC)
```

       obj = self.find_line_magic(oname)

```
   else:
```

       # search without prefix, so run? will find %run?

       obj = self.find_line_magic(oname)

```
       if obj is None:
```

           obj = self.find_cell_magic(oname)

```
   if obj is not None:
```
```
       found = True
```
```
       ospace = 'IPython internal'
```
```
       ismagic = True
```

       isalias = isinstance(obj, Alias)

Last try: special-case some literals like '', [], {}, etc:
if not found and oname_head in ["''",'""','[]','{}','()']:
```
   obj = eval(oname_head)
```
```
   found = True
```
```
   ospace = 'Interactive'
```
return {
```
       'obj':obj,
```
```
       'found':found,
```
```
       'parent':parent,
```
```
       'ismagic':ismagic,
```
```
       'isalias':isalias,
```
```
       'namespace':ospace
```
```
      }
```

+@staticmethod
+def _getattr_property(obj, attrname):

"""Property-aware getattr to use in object finding.
If attrname represents a property, return it unevaluated (in case it has
side effects or raises an error.
"""
if not isinstance(obj, type):
```
   try:
```

       # `getattr(type(obj), attrname)` is not guaranteed to return

       # `obj`, but does so for property:

```
       #
```

       # property.__get__(self, None, cls) -> self

```
       #
```

       # The universal alternative is to traverse the mro manually

       # searching for attrname in class dicts.

       attr = getattr(type(obj), attrname)

```
   except AttributeError:
```
```
       pass
```
```
   else:
```

       # This relies on the fact that data descriptors (with both

       # __get__ & __set__ magic methods) take precedence over

```
       # instance-level attributes:
```
```
       #
```
```
       #    class A(object):
```
```
       #        @property
```

       #        def foobar(self): return 123

```
       #    a = A()
```
```
       #    a.__dict__['foobar'] = 345
```
```
       #    a.foobar  # == 123
```
```
       #
```

       # So, a property may be returned right away.

```
       if isinstance(attr, property):
```
```
           return attr
```
Nothing helped, fall back.
return getattr(obj, attrname)

+def _object_find(self, oname, namespaces=None):

"""Find an object and return a struct with info about it."""
return Struct(self._ofind(oname, namespaces))

+def _inspect(self, meth, oname, namespaces=None, **kw):

"""Generic interface to the inspector system.
This function is meant to be called by pdef, pdoc & friends.
"""
info = self._object_find(oname, namespaces)
docformat = sphinxify if self.sphinxify_docstring else None
if info.found:

   pmethod = getattr(self.inspector, meth)

   # TODO: only apply format_screen to the plain/text repr of the mime

```
   # bundle.
```

   formatter = format_screen if info.ismagic else docformat

```
   if meth == 'pdoc':
```

       pmethod(info.obj, oname, formatter)

```
   elif meth == 'pinfo':
```

       pmethod(info.obj, oname, formatter, info,

               enable_html_pager=self.enable_html_pager, **kw)

```
   else:
```
```
       pmethod(info.obj, oname)
```
else:

   print('Object `%s` not found.' % oname)

   return 'not found'  # so callers can take other action

+def object_inspect(self, oname, detail_level=0):

"""Get object info about oname"""
with self.builtin_trap:
```
   info = self._object_find(oname)
```
```
   if info.found:
```

       return self.inspector.info(info.obj, oname, info=info,

                   detail_level=detail_level

```
       )
```
```
   else:
```

       return oinspect.object_info(name=oname, found=False)

+def object_inspect_text(self, oname, detail_level=0):

"""Get object info as formatted text"""
return self.object_inspect_mime(oname, detail_level)['text/plain']

+def object_inspect_mime(self, oname, detail_level=0):

"""Get object info as a mimebundle of formatted representations.
A mimebundle is a dictionary, keyed by mime-type.
It must always have the key 'text/plain'.
"""
with self.builtin_trap:
```
   info = self._object_find(oname)
```
```
   if info.found:
```

       return self.inspector._get_info(info.obj, oname, info=info,

                   detail_level=detail_level

```
       )
```
```
   else:
```
```
       raise KeyError(oname)
```

+#-------------------------------------------------------------------------
+# Things related to history management
+#-------------------------------------------------------------------------
+
+def init_history(self):

"""Sets up the command history, and starts regular autosaves."""
self.history_manager = HistoryManager(shell=self, parent=self)
self.configurables.append(self.history_manager)

+#-------------------------------------------------------------------------
+# Things related to exception handling and tracebacks (not debugging)
+#-------------------------------------------------------------------------
+
+debugger_cls = Pdb
+
+def init_traceback_handlers(self, custom_exceptions):

Syntax error handler.
self.SyntaxTB = ultratb.SyntaxTB(color_scheme='NoColor', parent=self)
The interactive one is initialized with an offset, meaning we always
want to remove the topmost item in the traceback, which is our own
internal code. Valid modes: ['Plain','Context','Verbose']
self.InteractiveTB = ultratb.AutoFormattedTB(mode = 'Plain',

                                            color_scheme='NoColor',

                                            tb_offset = 1,

                          check_cache=check_linecache_ipython,

                          debugger_cls=self.debugger_cls, parent=self)

The instance will store a pointer to the system-wide exception hook,
so that runtime code (such as magics) can access it. This is because
during the read-eval loop, it may get temporarily overwritten.
self.sys_excepthook = sys.excepthook
and add any custom exception handlers the user may have specified
self.set_custom_exc(*custom_exceptions)
Set the exception mode
self.InteractiveTB.set_mode(mode=self.xmode)

+def set_custom_exc(self, exc_tuple, handler):

"""set_custom_exc(exc_tuple, handler)
Set a custom exception handler, which will be called if any of the
exceptions in exc_tuple occur in the mainloop (specifically, in the
run_code() method).
Parameters
exc_tuple : tuple of exception classes

   A *tuple* of exception classes, for which to call the defined

   handler.  It is very important that you use a tuple, and NOT A

   LIST here, because of the way Python's except statement works.  If

   you only want to trap a single exception, use a singleton tuple::

       exc_tuple == (MyCustomException,)

handler : callable

   handler must have the following signature::

       def my_handler(self, etype, value, tb, tb_offset=None):

```
           ...
```
```
           return structured_traceback
```

   Your handler must return a structured traceback (a list of strings),

```
   or None.
```

   This will be made into an instance method (via types.MethodType)

   of IPython itself, and it will be called if any of the exceptions

   listed in the exc_tuple are caught. If the handler is None, an

   internal basic one is used, which just prints basic info.

   To protect IPython from crashes, if your handler ever raises an

   exception or returns an invalid result, it will be immediately

```
   disabled.
```
WARNING: by putting in your own exception handler into IPython's main
execution loop, you run a very good chance of nasty crashes. This
facility should only be used if you really know what you are doing."""
if not isinstance(exc_tuple, tuple):

   raise TypeError("The custom exceptions must be given as a tuple.")

def dummy_handler(self, etype, value, tb, tb_offset=None):

   print('*** Simple custom exception handler ***')

```
   print('Exception type :', etype)
```
```
   print('Exception value:', value)
```
```
   print('Traceback      :', tb)
```
def validate_stb(stb):

   """validate structured traceback return type

   return type of CustomTB *should* be a list of strings, but allow

   single strings or None, which are harmless.

   This function will *always* return a list of strings,

   and will raise a TypeError if stb is inappropriate.

```
   """
```

   msg = "CustomTB must return list of strings, not %r" % stb

```
   if stb is None:
```
```
       return []
```
```
   elif isinstance(stb, str):
```
```
       return [stb]
```
```
   elif not isinstance(stb, list):
```
```
       raise TypeError(msg)
```
```
   # it's a list
```
```
   for line in stb:
```
```
       # check every element
```
```
       if not isinstance(line, str):
```
```
           raise TypeError(msg)
```
```
   return stb
```
if handler is None:
```
   wrapped = dummy_handler
```
else:

   def wrapped(self,etype,value,tb,tb_offset=None):

       """wrap CustomTB handler, to protect IPython from user code

       This makes it harder (but not impossible) for custom exception

```
       handlers to crash IPython.
```
```
       """
```
```
       try:
```

           stb = handler(self,etype,value,tb,tb_offset=tb_offset)

```
           return validate_stb(stb)
```
```
       except:
```

           # clear custom handler immediately

           self.set_custom_exc((), None)

           print("Custom TB Handler failed, unregistering", file=sys.stderr)

           # show the exception in handler first

           stb = self.InteractiveTB.structured_traceback(*sys.exc_info())

           print(self.InteractiveTB.stb2text(stb))

           print("The original exception:")

           stb = self.InteractiveTB.structured_traceback(

                                   (etype,value,tb), tb_offset=tb_offset

```
           )
```
```
       return stb
```
self.CustomTB = types.MethodType(wrapped,self)
self.custom_exceptions = exc_tuple

+def excepthook(self, etype, value, tb):

"""One more defense for GUI apps that call sys.excepthook.
GUI frameworks like wxPython trap exceptions and call
sys.excepthook themselves. I guess this is a feature that
enables them to keep running after exceptions that would
otherwise kill their mainloop. This is a bother for IPython
which excepts to catch all of the program exceptions with a try:
except: statement.
Normally, IPython sets sys.excepthook to a CrashHandler instance, so if
any app directly invokes sys.excepthook, it will look to the user like
IPython crashed. In order to work around this, we can disable the
CrashHandler and replace it with this excepthook instead, which prints a
regular traceback using our InteractiveTB. In this fashion, apps which
call sys.excepthook will generate a regular-looking exception from
IPython, and the CrashHandler will only be triggered by real IPython
crashes.
This hook should be used sparingly, only in places which are not likely
to be true IPython errors.
"""
self.showtraceback((etype, value, tb), tb_offset=0)

+def _get_exc_info(self, exc_tuple=None):

"""get exc_info from a given tuple, sys.exc_info() or sys.last_type etc.
Ensures sys.last_type,value,traceback hold the exc_info we found,
from whichever source.
raises ValueError if none of these contain any information
"""
if exc_tuple is None:
```
   etype, value, tb = sys.exc_info()
```
else:
```
   etype, value, tb = exc_tuple
```
if etype is None:
```
   if hasattr(sys, 'last_type'):
```

       etype, value, tb = sys.last_type, sys.last_value, \

                          sys.last_traceback

if etype is None:

   raise ValueError("No exception to find")

Now store the exception info in sys.last_type etc.
WARNING: these variables are somewhat deprecated and not
necessarily safe to use in a threaded environment, but tools
like pdb depend on their existence, so let's set them. If we
find problems in the field, we'll need to revisit their use.
sys.last_type = etype
sys.last_value = value
sys.last_traceback = tb
return etype, value, tb

+def show_usage_error(self, exc):

"""Show a short message for UsageErrors
These are special exceptions that shouldn't show a traceback.
"""
print("UsageError: %s" % exc, file=sys.stderr)

+def get_exception_only(self, exc_tuple=None):

"""
Return as a string (ending with a newline) the exception that
just occurred, without any traceback.
"""
etype, value, tb = self._get_exc_info(exc_tuple)
msg = traceback.format_exception_only(etype, value)
return ''.join(msg)

+def showtraceback(self, exc_tuple=None, filename=None, tb_offset=None,

             exception_only=False, running_compiled_code=False):

"""Display the exception that just occurred.
If nothing is known about the exception, this is the method which
should be used throughout the code for presenting user tracebacks,
rather than directly invoking the InteractiveTB object.
A specific showsyntaxerror() also exists, but this method can take
care of calling it if needed, so unless you are explicitly catching a
SyntaxError exception, don't try to analyze the stack manually and
simply call this method."""
try:
```
   try:
```

       etype, value, tb = self._get_exc_info(exc_tuple)

```
   except ValueError:
```

       print('No traceback available to show.', file=sys.stderr)

```
       return
```
```
   if issubclass(etype, SyntaxError):
```

       # Though this won't be called by syntax errors in the input

       # line, there may be SyntaxError cases with imported code.

       self.showsyntaxerror(filename, running_compiled_code)

```
   elif etype is UsageError:
```
```
       self.show_usage_error(value)
```
```
   else:
```
```
       if exception_only:
```

           stb = ['An exception has occurred, use %tb to see '

                  'the full traceback.\n']

           stb.extend(self.InteractiveTB.get_exception_only(etype,

                                                            value))

```
       else:
```
```
           try:
```

               # Exception classes can customise their traceback - we

               # use this in IPython.parallel for exceptions occurring

               # in the engines. This should return a list of strings.

               stb = value._render_traceback_()

```
           except Exception:
```

               stb = self.InteractiveTB.structured_traceback(etype,

                                   value, tb, tb_offset=tb_offset)

           self._showtraceback(etype, value, stb)

```
           if self.call_pdb:
```
```
               # drop into debugger
```

               self.debugger(force=True)

```
           return
```
```
       # Actually show the traceback
```

       self._showtraceback(etype, value, stb)

except KeyboardInterrupt:

   print('\n' + self.get_exception_only(), file=sys.stderr)

+def _showtraceback(self, etype, evalue, stb):

"""Actually show a traceback.
Subclasses may override this method to put the traceback on a different
place, like a side channel.
"""
print(self.InteractiveTB.stb2text(stb))

+def showsyntaxerror(self, filename=None, running_compiled_code=False):

"""Display the syntax error that just occurred.
This doesn't display a stack trace because there isn't one.
If a filename is given, it is stuffed in the exception instead
of what was there before (because Python's parser always uses
"" when reading from a string).
If the syntax error occurred when running a compiled code (i.e. running_compile_code=True),
longer stack trace will be displayed.
```
"""
```
etype, value, last_traceback = self._get_exc_info()
if filename and issubclass(etype, SyntaxError):
```
   try:
```
```
       value.filename = filename
```
```
   except:
```

       # Not the format we expect; leave it alone

```
       pass
```
If the error occurred when executing compiled code, we should provide full stacktrace.
elist = traceback.extract_tb(last_traceback) if running_compiled_code else []
stb = self.SyntaxTB.structured_traceback(etype, value, elist)
self._showtraceback(etype, value, stb)

+# This is overridden in TerminalInteractiveShell to show a message about
+# the %paste magic.
+def showindentationerror(self):

"""Called by _run_cell when there's an IndentationError in code entered
at the prompt.
This is overridden in TerminalInteractiveShell to show a message about
the %paste magic."""
self.showsyntaxerror()

+#-------------------------------------------------------------------------
+# Things related to readline
+#-------------------------------------------------------------------------
+
+def init_readline(self):

"""DEPRECATED
Moved to terminal subclass, here only to simplify the init logic."""
Set a number of methods that depend on readline to be no-op
warnings.warn('init_readline is no-op since IPython 5.0 and is Deprecated',

       DeprecationWarning, stacklevel=2)

self.set_custom_completer = no_op

+@skip_doctest
+def set_next_input(self, s, replace=False):

""" Sets the 'default' input string for the next command line.
Example::

   In [1]: _ip.set_next_input("Hello Word")

   In [2]: Hello Word_  # cursor is here

"""
self.rl_next_input = s

+def _indent_current_str(self):

"""return the current level of indentation as a string"""
return self.input_splitter.get_indent_spaces() * ' '

+#-------------------------------------------------------------------------
+# Things related to text completion
+#-------------------------------------------------------------------------
+
+def init_completer(self):

"""Initialize the completion machinery.
This creates completion machinery that can be used by client code,
either interactively in-process (typically triggered by the readline
library), programmatically (such as in test suites) or out-of-process
(typically over the network by remote frontends).
"""
from IPython.core.completer import IPCompleter
from IPython.core.completerlib import (module_completer,

       magic_run_completer, cd_completer, reset_completer)

self.Completer = IPCompleter(shell=self,

                            namespace=self.user_ns,

                            global_namespace=self.user_global_ns,

                            parent=self,

```
                            )
```
self.configurables.append(self.Completer)
Add custom completers to the basic ones built into IPCompleter
sdisp = self.strdispatchers.get('complete_command', StrDispatch())
self.strdispatchers['complete_command'] = sdisp
self.Completer.custom_completers = sdisp
self.set_hook('complete_command', module_completer, str_key = 'import')
self.set_hook('complete_command', module_completer, str_key = 'from')
self.set_hook('complete_command', module_completer, str_key = '%aimport')
self.set_hook('complete_command', magic_run_completer, str_key = '%run')
self.set_hook('complete_command', cd_completer, str_key = '%cd')
self.set_hook('complete_command', reset_completer, str_key = '%reset')

+@skip_doctest
+def complete(self, text, line=None, cursor_pos=None):

"""Return the completed text and a list of completions.
Parameters
```
  text : string
```

    A string of text to be completed on.  It can be given as empty and

    instead a line/position pair are given.  In this case, the

    completer itself will split the line like readline does.

```
  line : string, optional
```

    The complete line that text is part of.

```
  cursor_pos : int, optional
```

    The position of the cursor on the input line.

Returns
```
 text : string
```
```
   The actual text that was completed.
```
```
 matches : list
```

   A sorted list with all possible completions.

The optional arguments allow the completion to take more context into
account, and are part of the low-level completion API.
This is a wrapper around the completion mechanism, similar to what
readline does at the command line when the TAB key is hit. By
exposing it as a method, it can be used by other non-readline
environments (such as GUIs) for text completion.
Simple usage example:
In [1]: x = 'hello'
In [2]: _ip.complete('x.l')
Out[2]: ('x.l', ['x.ljust', 'x.lower', 'x.lstrip'])
"""
Inject names into builtin so we can complete on the added names.
with self.builtin_trap:

   return self.Completer.complete(text, line, cursor_pos)

+def set_custom_completer(self, completer, pos=0):

"""Adds a new custom completer function.
The position argument (defaults to 0) is the index in the completers
list where you want the completer to be inserted."""
newcomp = types.MethodType(completer,self.Completer)
self.Completer.matchers.insert(pos,newcomp)

+def set_completer_frame(self, frame=None):

"""Set the frame of the completer."""
if frame:

   self.Completer.namespace = frame.f_locals

   self.Completer.global_namespace = frame.f_globals

else:

   self.Completer.namespace = self.user_ns

   self.Completer.global_namespace = self.user_global_ns

+#-------------------------------------------------------------------------
+# Things related to magics
+#-------------------------------------------------------------------------
+
+def init_magics(self):

from IPython.core import magics as m
self.magics_manager = magic.MagicsManager(shell=self,
```
                          parent=self,
```

                          user_magics=m.UserMagics(self))

self.configurables.append(self.magics_manager)
Expose as public API from the magics manager
self.register_magics = self.magics_manager.register
self.register_magics(m.AutoMagics, m.BasicMagics, m.CodeMagics,

   m.ConfigMagics, m.DisplayMagics, m.ExecutionMagics,

   m.ExtensionMagics, m.HistoryMagics, m.LoggingMagics,

   m.NamespaceMagics, m.OSMagics, m.PylabMagics, m.ScriptMagics,

)
Register Magic Aliases
mman = self.magics_manager
FIXME: magic aliases should be defined by the Magics classes
or in MagicsManager, not here
mman.register_alias('ed', 'edit')
mman.register_alias('hist', 'history')
mman.register_alias('rep', 'recall')
mman.register_alias('SVG', 'svg', 'cell')
mman.register_alias('HTML', 'html', 'cell')
mman.register_alias('file', 'writefile', 'cell')
FIXME: Move the color initialization to the DisplayHook, which
should be split into a prompt manager and displayhook. We probably
even need a centralize colors management object.
self.run_line_magic('colors', self.colors)

+# Defined here so that it's included in the documentation
+@functools.wraps(magic.MagicsManager.register_function)
+def register_magic_function(self, func, magic_kind='line', magic_name=None):

self.magics_manager.register_function(func,

                         magic_kind=magic_kind, magic_name=magic_name)

+def run_line_magic(self, magic_name, line, _stack_depth=1):

"""Execute the given line magic.
Parameters
magic_name : str

 Name of the desired magic function, without '%' prefix.

line : str

 The rest of the input line as a single string.

_stack_depth : int

 If run_line_magic() is called from magic() then _stack_depth=2.

 This is added to ensure backward compatibility for use of 'get_ipython().magic()'

"""
fn = self.find_line_magic(magic_name)
if fn is None:

   cm = self.find_cell_magic(magic_name)

   etpl = "Line magic function `%%%s` not found%s."

   extra = '' if cm is None else (' (But cell magic `%%%%%s` exists, '

                           'did you mean that instead?)' % magic_name )

   raise UsageError(etpl % (magic_name, extra))

else:

   # Note: this is the distance in the stack to the user's frame.

   # This will need to be updated if the internal calling logic gets

   # refactored, or else we'll be expanding the wrong variables.

   # Determine stack_depth depending on where run_line_magic() has been called

```
   stack_depth = _stack_depth
```

   magic_arg_s = self.var_expand(line, stack_depth)

   # Put magic args in a list so we can call with f(*a) syntax

```
   args = [magic_arg_s]
```
```
   kwargs = {}
```

   # Grab local namespace if we need it:

   if getattr(fn, "needs_local_scope", False):

       kwargs['local_ns'] = sys._getframe(stack_depth).f_locals

```
   with self.builtin_trap:
```
```
       result = fn(*args,**kwargs)
```
```
   return result
```

+def run_cell_magic(self, magic_name, line, cell):

"""Execute the given cell magic.
Parameters
magic_name : str

 Name of the desired magic function, without '%' prefix.

line : str

 The rest of the first input line as a single string.

cell : str

 The body of the cell as a (possibly multiline) string.

"""
fn = self.find_cell_magic(magic_name)
if fn is None:

   lm = self.find_line_magic(magic_name)

   etpl = "Cell magic `%%{0}` not found{1}."

   extra = '' if lm is None else (' (But line magic `%{0}` exists, '

                   'did you mean that instead?)'.format(magic_name))

   raise UsageError(etpl.format(magic_name, extra))

elif cell == '':

   message = '%%{0} is a cell magic, but the cell body is empty.'.format(magic_name)

   if self.find_line_magic(magic_name) is not None:

       message += ' Did you mean the line magic %{0} (single %)?'.format(magic_name)

```
   raise UsageError(message)
```
else:

   # Note: this is the distance in the stack to the user's frame.

   # This will need to be updated if the internal calling logic gets

   # refactored, or else we'll be expanding the wrong variables.

```
   stack_depth = 2
```

   magic_arg_s = self.var_expand(line, stack_depth)

```
   with self.builtin_trap:
```
```
       result = fn(magic_arg_s, cell)
```
```
   return result
```

+def find_line_magic(self, magic_name):

"""Find and return a line magic by name.
Returns None if the magic isn't found."""
return self.magics_manager.magics['line'].get(magic_name)

+def find_cell_magic(self, magic_name):

"""Find and return a cell magic by name.
Returns None if the magic isn't found."""
return self.magics_manager.magics['cell'].get(magic_name)

+def find_magic(self, magic_name, magic_kind='line'):

"""Find and return a magic of the given type by name.
Returns None if the magic isn't found."""
return self.magics_manager.magics[magic_kind].get(magic_name)

+def magic(self, arg_s):

"""DEPRECATED. Use run_line_magic() instead.
Call a magic function by name.
Input: a string containing the name of the magic function to call and
any additional arguments to be passed to the magic.
magic('name -opt foo bar') is equivalent to typing at the ipython
prompt:
In[1]: %name -opt foo bar
To call a magic without arguments, simply use magic('name').
This provides a proper Python function to call IPython's magics in any
valid Python code you can type at the interpreter, including loops and
compound statements.
"""
TODO: should we issue a loud deprecation warning here?
magic_name, _, magic_arg_s = arg_s.partition(' ')
magic_name = magic_name.lstrip(prefilter.ESC_MAGIC)
return self.run_line_magic(magic_name, magic_arg_s, _stack_depth=2)

+#-------------------------------------------------------------------------
+# Things related to macros
+#-------------------------------------------------------------------------
+
+def define_macro(self, name, themacro):

"""Define a new macro
Parameters
name : str
```
   The name of the macro.
```
themacro : str or Macro

   The action to do upon invoking the macro.  If a string, a new

   Macro object is created by passing the string to it.

"""
from IPython.core import macro
if isinstance(themacro, str):
```
   themacro = macro.Macro(themacro)
```
if not isinstance(themacro, macro.Macro):

   raise ValueError('A macro must be a string or a Macro instance.')

self.user_ns[name] = themacro

+#-------------------------------------------------------------------------
+# Things related to the running of system commands
+#-------------------------------------------------------------------------
+
+def system_piped(self, cmd):

"""Call the given cmd in a subprocess, piping stdout/err
Parameters
cmd : str

 Command to execute (can not end in '&', as background processes are

 not supported.  Should not be a command that expects input

```
 other than simple text.
```
"""
if cmd.rstrip().endswith('&'):

   # this is *far* from a rigorous test

   # We do not support backgrounding processes because we either use

   # pexpect or pipes to read from.  Users can always just call

   # os.system() or use ip.system=ip.system_raw

   # if they really want a background process.

   raise OSError("Background processes not supported.")

we explicitly do NOT return the subprocess status code, because
a non-None value would trigger :func:sys.displayhook calls.
Instead, we store the exit_code in user_ns.
self.user_ns['_exit_code'] = system(self.var_expand(cmd, depth=1))

+def system_raw(self, cmd):

"""Call the given cmd in a subprocess using os.system on Windows or
subprocess.call using the system shell on other platforms.
Parameters
cmd : str
```
 Command to execute.
```
"""
cmd = self.var_expand(cmd, depth=1)
protect os.system from UNC paths on Windows, which it can't handle:
if sys.platform == 'win32':

   from IPython.utils._process_win32 import AvoidUNCPath

```
   with AvoidUNCPath() as path:
```
```
       if path is not None:
```

           cmd = '"pushd %s &&"%s' % (path, cmd)

```
       try:
```
```
           ec = os.system(cmd)
```
```
       except KeyboardInterrupt:
```

           print('\n' + self.get_exception_only(), file=sys.stderr)

```
           ec = -2
```
else:

   # For posix the result of the subprocess.call() below is an exit

   # code, which by convention is zero for success, positive for

   # program failure.  Exit codes above 128 are reserved for signals,

   # and the formula for converting a signal to an exit code is usually

   # signal_number+128.  To more easily differentiate between exit

   # codes and signals, ipython uses negative numbers.  For instance

   # since control-c is signal 2 but exit code 130, ipython's

   # _exit_code variable will read -2.  Note that some shells like

   # csh and fish don't follow sh/bash conventions for exit codes.

   executable = os.environ.get('SHELL', None)

```
   try:
```

       # Use env shell instead of default /bin/sh

       ec = subprocess.call(cmd, shell=True, executable=executable)

```
   except KeyboardInterrupt:
```

       # intercept control-C; a long traceback is not useful here

       print('\n' + self.get_exception_only(), file=sys.stderr)

```
       ec = 130
```
```
   if ec > 128:
```
```
       ec = -(ec - 128)
```
We explicitly do NOT return the subprocess status code, because
a non-None value would trigger :func:sys.displayhook calls.
Instead, we store the exit_code in user_ns. Note the semantics
of _exit_code: for control-c, _exit_code == -signal.SIGNIT,
but raising SystemExit(_exit_code) will give status 254!
self.user_ns['_exit_code'] = ec

+# use piped system by default, because it is better behaved
+system = system_piped
+
+def getoutput(self, cmd, split=True, depth=0):

"""Get output (possibly including stderr) from a subprocess.
Parameters
cmd : str

 Command to execute (can not end in '&', as background processes are

```
 not supported.
```
split : bool, optional

 If True, split the output into an IPython SList.  Otherwise, an

 IPython LSString is returned.  These are objects similar to normal

 lists and strings, with a few convenience attributes for easier

 manipulation of line-based output.  You can use '?' on them for

```
 details.
```
depth : int, optional

 How many frames above the caller are the local variables which should

 be expanded in the command string? The default (0) assumes that the

 expansion variables are in the stack frame calling this function.

"""
if cmd.rstrip().endswith('&'):

   # this is *far* from a rigorous test

   raise OSError("Background processes not supported.")

out = getoutput(self.var_expand(cmd, depth=depth+1))
if split:
```
   out = SList(out.splitlines())
```
else:
```
   out = LSString(out)
```
return out

+#-------------------------------------------------------------------------
+# Things related to aliases
+#-------------------------------------------------------------------------
+
+def init_alias(self):

self.alias_manager = AliasManager(shell=self, parent=self)
self.configurables.append(self.alias_manager)

+#-------------------------------------------------------------------------
+# Things related to extensions
+#-------------------------------------------------------------------------
+
+def init_extension_manager(self):

self.extension_manager = ExtensionManager(shell=self, parent=self)
self.configurables.append(self.extension_manager)

+#-------------------------------------------------------------------------
+# Things related to payloads
+#-------------------------------------------------------------------------
+
+def init_payload(self):

self.payload_manager = PayloadManager(parent=self)
self.configurables.append(self.payload_manager)

+#-------------------------------------------------------------------------
+# Things related to the prefilter
+#-------------------------------------------------------------------------
+
+def init_prefilter(self):

self.prefilter_manager = PrefilterManager(shell=self, parent=self)
self.configurables.append(self.prefilter_manager)
Ultimately this will be refactored in the new interpreter code, but
for now, we should expose the main prefilter method (there's legacy
code out there that may rely on this).
self.prefilter = self.prefilter_manager.prefilter_lines

+def auto_rewrite_input(self, cmd):

"""Print to the screen the rewritten form of the user's command.
This shows visual feedback by rewriting input lines that cause
automatic calling to kick in, like::
```
 /f x
```
into::
```
 ------> f(x)
```
after the user's input prompt. This helps the user understand that the
input line was transformed automatically by IPython.
"""
if not self.show_rewritten_input:
```
   return
```
This is overridden in TerminalInteractiveShell to use fancy prompts
print("------> " + cmd)

+#-------------------------------------------------------------------------
+# Things related to extracting values/expressions from kernel and user_ns
+#-------------------------------------------------------------------------
+
+def _user_obj_error(self):

"""return simple exception dict
for use in user_expressions
"""
etype, evalue, tb = self._get_exc_info()
stb = self.InteractiveTB.get_exception_only(etype, evalue)
exc_info = {
```
   u'status' : 'error',
```
```
   u'traceback' : stb,
```
```
   u'ename' : etype.__name__,
```

   u'evalue' : py3compat.safe_unicode(evalue),

}
return exc_info

+def _format_user_obj(self, obj):

"""format a user object to display dict
for use in user_expressions
"""
data, md = self.display_formatter.format(obj)
value = {
```
   'status' : 'ok',
```
```
   'data' : data,
```
```
   'metadata' : md,
```
}
return value

+def user_expressions(self, expressions):

"""Evaluate a dict of expressions in the user's namespace.
Parameters
expressions : dict

 A dict with string keys and string values.  The expression values

 should be valid Python expressions, each of which will be evaluated

```
 in the user namespace.
```
Returns
A dict, keyed like the input expressions dict, with the rich mime-typed
display_data of each value.
"""
out = {}
user_ns = self.user_ns
global_ns = self.user_global_ns
for key, expr in expressions.items():
```
   try:
```

       value = self._format_user_obj(eval(expr, global_ns, user_ns))

```
   except:
```
```
       value = self._user_obj_error()
```
```
   out[key] = value
```
return out

+#-------------------------------------------------------------------------
+# Things related to the running of code
+#-------------------------------------------------------------------------
+
+def ex(self, cmd):

"""Execute a normal python statement in user namespace."""
with self.builtin_trap:

   exec(cmd, self.user_global_ns, self.user_ns)

+def ev(self, expr):

"""Evaluate python expression expr in user namespace.
Returns the result of evaluation
"""
with self.builtin_trap:

   return eval(expr, self.user_global_ns, self.user_ns)

+def safe_execfile(self, fname, *where, exit_ignore=False, raise_exceptions=False, shell_futures=False):

"""A safe version of the builtin execfile().
This version will never throw an exception, but instead print
helpful error messages to the screen. This only works on pure
Python files with the .py extension.
Parameters
fname : string

   The name of the file to be executed.

where : tuple

   One or two namespaces, passed to execfile() as (globals,locals).

   If only one is given, it is passed as both.

exit_ignore : bool (False)

   If True, then silence SystemExit for non-zero status (it is always

   silenced for zero status, as it is so common).

raise_exceptions : bool (False)

   If True raise exceptions everywhere. Meant for testing.

shell_futures : bool (False)

   If True, the code will share future statements with the interactive

   shell. It will both be affected by previous __future__ imports, and

   any __future__ imports in the code will affect the shell. If False,

   __future__ imports are not shared in either direction.

"""
fname = os.path.abspath(os.path.expanduser(fname))
Make sure we can open the file
try:
```
   with open(fname):
```
```
       pass
```
except:

   warn('Could not open file <%s> for safe execution.' % fname)

```
   return
```
Find things also in current directory. This is needed to mimic the
behavior of running a script from the system command line, where
Python inserts the script's directory into sys.path
dname = os.path.dirname(fname)
with prepended_to_syspath(dname), self.builtin_trap:
```
   try:
```

       glob, loc = (where + (None, ))[:2]

```
       py3compat.execfile(
```
```
           fname, glob, loc,
```

           self.compile if shell_futures else None)

```
   except SystemExit as status:
```

       # If the call was made with 0 or None exit status (sys.exit(0)

       # or sys.exit() ), don't bother showing a traceback, as both of

       # these are considered normal by the OS:

       # > python -c'import sys;sys.exit(0)'; echo $?

```
       # 0
```

       # > python -c'import sys;sys.exit()'; echo $?

```
       # 0
```

       # For other exit status, we show the exception unless

       # explicitly silenced, but only in short form.

```
       if status.code:
```
```
           if raise_exceptions:
```
```
               raise
```
```
           if not exit_ignore:
```

               self.showtraceback(exception_only=True)

```
   except:
```
```
       if raise_exceptions:
```
```
           raise
```

       # tb offset is 2 because we wrap execfile

```
       self.showtraceback(tb_offset=2)
```

+def safe_execfile_ipy(self, fname, shell_futures=False, raise_exceptions=False):

"""Like safe_execfile, but for .ipy or .ipynb files with IPython syntax.
Parameters
fname : str

   The name of the file to execute.  The filename must have a

```
   .ipy or .ipynb extension.
```
shell_futures : bool (False)

   If True, the code will share future statements with the interactive

   shell. It will both be affected by previous __future__ imports, and

   any __future__ imports in the code will affect the shell. If False,

   __future__ imports are not shared in either direction.

raise_exceptions : bool (False)

   If True raise exceptions everywhere.  Meant for testing.

"""
fname = os.path.abspath(os.path.expanduser(fname))
Make sure we can open the file
try:
```
   with open(fname):
```
```
       pass
```
except:

   warn('Could not open file <%s> for safe execution.' % fname)

```
   return
```
Find things also in current directory. This is needed to mimic the
behavior of running a script from the system command line, where
Python inserts the script's directory into sys.path
dname = os.path.dirname(fname)
def get_cells():

   """generator for sequence of code blocks to run"""

```
   if fname.endswith('.ipynb'):
```
```
       from nbformat import read
```
```
       nb = read(fname, as_version=4)
```
```
       if not nb.cells:
```
```
           return
```
```
       for cell in nb.cells:
```

           if cell.cell_type == 'code':

```
               yield cell.source
```
```
   else:
```
```
       with open(fname) as f:
```
```
           yield f.read()
```
with prepended_to_syspath(dname):
```
   try:
```
```
       for cell in get_cells():
```

           result = self.run_cell(cell, silent=True, shell_futures=shell_futures)

```
           if raise_exceptions:
```
```
               result.raise_error()
```
```
           elif not result.success:
```
```
               break
```
```
   except:
```
```
       if raise_exceptions:
```
```
           raise
```
```
       self.showtraceback()
```

       warn('Unknown failure executing file: <%s>' % fname)

+def safe_run_module(self, mod_name, where):

"""A safe version of runpy.run_module().
This version will never throw an exception, but instead print
helpful error messages to the screen.
SystemExit exceptions with status code 0 or None are ignored.
Parameters
mod_name : string

   The name of the module to be executed.

where : dict
```
   The globals namespace.
```
"""
try:
```
   try:
```
```
       where.update(
```

           runpy.run_module(str(mod_name), run_name="__main__",

                            alter_sys=True)

```
                   )
```
```
   except SystemExit as status:
```
```
       if status.code:
```
```
           raise
```
except:
```
   self.showtraceback()
```

   warn('Unknown failure executing module: <%s>' % mod_name)

+def run_cell(self, raw_cell, store_history=False, silent=False, shell_futures=True):

"""Run a complete IPython cell.
Parameters
raw_cell : str

 The code (including IPython code such as %magic functions) to run.

store_history : bool

 If True, the raw and translated cell will be stored in IPython's

 history. For user code calling back into IPython's machinery, this

```
 should be set to False.
```
silent : bool

 If True, avoid side-effects, such as implicit displayhooks and

 and logging.  silent=True forces store_history=False.

shell_futures : bool

 If True, the code will share future statements with the interactive

 shell. It will both be affected by previous __future__ imports, and

 any __future__ imports in the code will affect the shell. If False,

 __future__ imports are not shared in either direction.

Returns
result : :class:ExecutionResult
"""
try:
```
   result = self._run_cell(
```

       raw_cell, store_history, silent, shell_futures)

finally:
```
   self.events.trigger('post_execute')
```
```
   if not silent:
```

       self.events.trigger('post_run_cell', result)

return result

+def _run_cell(self, raw_cell, store_history, silent, shell_futures):

"""Internal method to run a complete IPython cell.
Parameters
raw_cell : str
store_history : bool
silent : bool
shell_futures : bool
Returns
result : :class:ExecutionResult
"""
info = ExecutionInfo(

   raw_cell, store_history, silent, shell_futures)

result = ExecutionResult(info)
if (not raw_cell) or raw_cell.isspace():

   self.last_execution_succeeded = True

```
   self.last_execution_result = result
```
```
   return result
```
if silent:
```
   store_history = False
```
if store_history:

   result.execution_count = self.execution_count

def error_before_exec(value):
```
   if store_history:
```
```
       self.execution_count += 1
```
```
   result.error_before_exec = value
```

   self.last_execution_succeeded = False

```
   self.last_execution_result = result
```
```
   return result
```
self.events.trigger('pre_execute')
if not silent:

   self.events.trigger('pre_run_cell', info)

If any of our input transformation (input_transformer_manager or
prefilter_manager) raises an exception, we store it in this variable
so that we can display the error after logging the input and storing
it in the history.
preprocessing_exc_tuple = None
try:
```
   # Static input transformations
```

   cell = self.input_transformer_manager.transform_cell(raw_cell)

except SyntaxError:

   preprocessing_exc_tuple = sys.exc_info()

   cell = raw_cell  # cell has to exist so it can be stored/logged

else:
```
   if len(cell.splitlines()) == 1:
```

       # Dynamic transformations - only applied for single line commands

```
       with self.builtin_trap:
```
```
           try:
```

               # use prefilter_lines to handle trailing newlines

               # restore trailing newline for ast.parse

               cell = self.prefilter_manager.prefilter_lines(cell) + '\n'

```
           except Exception:
```

               # don't allow prefilter errors to crash IPython

               preprocessing_exc_tuple = sys.exc_info()

Store raw and processed history
if store_history:

   self.history_manager.store_inputs(self.execution_count,

                                     cell, raw_cell)

if not silent:
```
   self.logger.log(cell, raw_cell)
```
Display the exception if input processing failed.
if preprocessing_exc_tuple is not None:

   self.showtraceback(preprocessing_exc_tuple)

```
   if store_history:
```
```
       self.execution_count += 1
```

   return error_before_exec(preprocessing_exc_tuple[2])

Our own compiler remembers the future environment. If we want to
run code with a separate future environment, use the default
compiler
compiler = self.compile if shell_futures else CachingCompiler()
with self.builtin_trap:

   cell_name = self.compile.cache(cell, self.execution_count)

```
   with self.display_trap:
```
```
       # Compile to bytecode
```
```
       try:
```

           code_ast = compiler.ast_parse(cell, filename=cell_name)

       except self.custom_exceptions as e:

           etype, value, tb = sys.exc_info()

           self.CustomTB(etype, value, tb)

```
           return error_before_exec(e)
```
```
       except IndentationError as e:
```
```
           self.showindentationerror()
```
```
           return error_before_exec(e)
```

       except (OverflowError, SyntaxError, ValueError, TypeError,

```
               MemoryError) as e:
```
```
           self.showsyntaxerror()
```
```
           return error_before_exec(e)
```
```
       # Apply AST transformations
```
```
       try:
```

           code_ast = self.transform_ast(code_ast)

```
       except InputRejected as e:
```
```
           self.showtraceback()
```
```
           return error_before_exec(e)
```

       # Give the displayhook a reference to our ExecutionResult so it

```
       # can fill in the output value.
```

       self.displayhook.exec_result = result

```
       # Execute the user code
```

       interactivity = 'none' if silent else self.ast_node_interactivity

       has_raised = self.run_ast_nodes(code_ast.body, cell_name,

          interactivity=interactivity, compiler=compiler, result=result)

       self.last_execution_succeeded = not has_raised

       self.last_execution_result = result

       # Reset this so later displayed values do not modify the

```
       # ExecutionResult
```

       self.displayhook.exec_result = None

if store_history:

   # Write output to the database. Does nothing unless

   # history output logging is enabled.

   self.history_manager.store_output(self.execution_count)

   # Each cell is a *single* input, regardless of how many lines it has

```
   self.execution_count += 1
```
return result

+def transform_ast(self, node):

"""Apply the AST transformations from self.ast_transformers
Parameters
node : ast.Node

 The root node to be transformed. Typically called with the ast.Module

```
 produced by parsing user input.
```
Returns
An ast.Node corresponding to the node it was called with. Note that it
may also modify the passed object, so don't rely on references to the
original AST.
"""
for transformer in self.ast_transformers:
```
   try:
```
```
       node = transformer.visit(node)
```
```
   except InputRejected:
```

       # User-supplied AST transformers can reject an input by raising

       # an InputRejected.  Short-circuit in this case so that we

       # don't unregister the transform.

```
       raise
```
```
   except Exception:
```

       warn("AST transformer %r threw an error. It will be unregistered." % transformer)

       self.ast_transformers.remove(transformer)

if self.ast_transformers:
```
   ast.fix_missing_locations(node)
```
return node

+def run_ast_nodes(self, nodelist:ListType[AST], cell_name:str, interactivity='last_expr',

               compiler=compile, result=None):

"""Run a sequence of AST nodes. The execution mode depends on the
interactivity parameter.
Parameters
nodelist : list
```
 A sequence of AST nodes to run.
```
cell_name : str

 Will be passed to the compiler as the filename of the cell. Typically

 the value returned by ip.compile.cache(cell).

interactivity : str

 'all', 'last', 'last_expr' , 'last_expr_or_assign' or 'none',

 specifying which nodes should be run interactively (displaying output

 from expressions). 'last_expr' will run the last node interactively

 only if it is an expression (i.e. expressions in loops or other blocks

 are not displayed) 'last_expr_or_assign' will run the last expression

 or the last assignment. Other values for this parameter will raise a

```
 ValueError.
```
compiler : callable

 A function with the same interface as the built-in compile(), to turn

 the AST nodes into code objects. Default is the built-in compile().

result : ExecutionResult, optional

 An object to store exceptions that occur during execution.

Returns
True if an exception occurred while running code, False if it finished
running.
"""
if not nodelist:
```
   return
```
if interactivity == 'last_expr_or_assign':

   if isinstance(nodelist[-1], _assign_nodes):

```
       asg = nodelist[-1]
```

       if isinstance(asg, ast.Assign) and len(asg.targets) == 1:

```
           target = asg.targets[0]
```

       elif isinstance(asg, _single_targets_nodes):

```
           target = asg.target
```
```
       else:
```
```
           target = None
```

       if isinstance(target, ast.Name):

           nnode = ast.Expr(ast.Name(target.id, ast.Load()))

           ast.fix_missing_locations(nnode)

```
           nodelist.append(nnode)
```
```
   interactivity = 'last_expr'
```
if interactivity == 'last_expr':

   if isinstance(nodelist[-1], ast.Expr):

```
       interactivity = "last"
```
```
   else:
```
```
       interactivity = "none"
```
if interactivity == 'none':

   to_run_exec, to_run_interactive = nodelist, []

elif interactivity == 'last':

   to_run_exec, to_run_interactive = nodelist[:-1], nodelist[-1:]

elif interactivity == 'all':

   to_run_exec, to_run_interactive = [], nodelist

else:

   raise ValueError("Interactivity was %r" % interactivity)

try:

   for i, node in enumerate(to_run_exec):

```
       mod = ast.Module([node])
```

       code = compiler(mod, cell_name, "exec")

```
       if self.run_code(code, result):
```
```
           return True
```

   for i, node in enumerate(to_run_interactive):

```
       mod = ast.Interactive([node])
```

       code = compiler(mod, cell_name, "single")

```
       if self.run_code(code, result):
```
```
           return True
```
```
   # Flush softspace
```
```
   if softspace(sys.stdout, 0):
```
```
       print()
```
except:

   # It's possible to have exceptions raised here, typically by

   # compilation of odd code (such as a naked 'return' outside a

   # function) that did parse but isn't valid. Typically the exception

   # is a SyntaxError, but it's safest just to catch anything and show

```
   # the user a traceback.
```

   # We do only one try/except outside the loop to minimize the impact

   # on runtime, and also because if any node in the node list is

   # broken, we should stop execution completely.

```
   if result:
```

       result.error_before_exec = sys.exc_info()[1]

```
   self.showtraceback()
```
```
   return True
```
return False

+def run_code(self, code_obj, result=None):

"""Execute a code object.
When an exception occurs, self.showtraceback() is called to display a
traceback.
Parameters
code_obj : code object

 A compiled code object, to be executed

result : ExecutionResult, optional

 An object to store exceptions that occur during execution.

Returns
False : successful execution.
True : an error occurred.
"""
Set our own excepthook in case the user code tries to call it
directly, so that the IPython crash handler doesn't get triggered
old_excepthook, sys.excepthook = sys.excepthook, self.excepthook
we save the original sys.excepthook in the instance, in case config
code (such as magics) needs access to it.
self.sys_excepthook = old_excepthook
outflag = True # happens in more places, so it's easier as default
try:
```
   try:
```
```
       self.hooks.pre_run_code_hook()
```

       #rprint('Running code', repr(code_obj)) # dbg

       exec(code_obj, self.user_global_ns, self.user_ns)

```
   finally:
```

       # Reset our crash handler in place

```
       sys.excepthook = old_excepthook
```
except SystemExit as e:
```
   if result is not None:
```
```
       result.error_in_exec = e
```

   self.showtraceback(exception_only=True)

   warn("To exit: use 'exit', 'quit', or Ctrl-D.", stacklevel=1)

except self.custom_exceptions:
```
   etype, value, tb = sys.exc_info()
```
```
   if result is not None:
```
```
       result.error_in_exec = value
```
```
   self.CustomTB(etype, value, tb)
```
except:
```
   if result is not None:
```

       result.error_in_exec = sys.exc_info()[1]

   self.showtraceback(running_compiled_code=True)

else:
```
   outflag = False
```
return outflag

+# For backwards compatibility
+runcode = run_code
+
+def check_complete(self, code):

"""Return whether a block of code is ready to execute, or should be continued
Parameters
source : string

 Python input code, which can be multiline.

Returns
status : str

 One of 'complete', 'incomplete', or 'invalid' if source is not a

```
 prefix of valid code.
```
indent : str

 When status is 'incomplete', this is some whitespace to insert on

```
 the next line of the prompt.
```
"""
status, nspaces = self.input_splitter.check_complete(code)
return status, ' ' * (nspaces or 0)

+#-------------------------------------------------------------------------
+# Things related to GUI support and pylab
+#-------------------------------------------------------------------------
+
+active_eventloop = None
+
+def enable_gui(self, gui=None):

raise NotImplementedError('Implement enable_gui in a subclass')

+def enable_matplotlib(self, gui=None):

"""Enable interactive matplotlib and inline figure support.
This takes the following steps:
1. select the appropriate eventloop and matplotlib backend
1. set up matplotlib for interactive use with that backend
1. configure formatters for inline figure display
1. enable the selected gui eventloop
Parameters
gui : optional, string

 If given, dictates the choice of matplotlib GUI backend to use

 (should be one of IPython's supported backends, 'qt', 'osx', 'tk',

 'gtk', 'wx' or 'inline'), otherwise we use the default chosen by

 matplotlib (as dictated by the matplotlib build-time options plus the

 user's matplotlibrc configuration file).  Note that not all backends

 make sense in all contexts, for example a terminal ipython can't

```
 display figures inline.
```
"""
from IPython.core import pylabtools as pt
gui, backend = pt.find_gui_and_backend(gui, self.pylab_gui_select)
if gui != 'inline':

   # If we have our first gui selection, store it

```
   if self.pylab_gui_select is None:
```
```
       self.pylab_gui_select = gui
```
```
   # Otherwise if they are different
```
```
   elif gui != self.pylab_gui_select:
```

       print('Warning: Cannot change to a different GUI toolkit: %s.'

               ' Using %s instead.' % (gui, self.pylab_gui_select))

       gui, backend = pt.find_gui_and_backend(self.pylab_gui_select)

pt.activate_matplotlib(backend)
pt.configure_inline_support(self, backend)
Now we must activate the gui pylab wants to use, and fix %run to take
plot updates into account
self.enable_gui(gui)
self.magics_manager.registry['ExecutionMagics'].default_runner = \
```
   pt.mpl_runner(self.safe_execfile)
```
return gui, backend

+def enable_pylab(self, gui=None, import_all=True, welcome_message=False):

"""Activate pylab support at runtime.
This turns on support for matplotlib, preloads into the interactive
namespace all of numpy and pylab, and configures IPython to correctly
interact with the GUI event loop. The GUI backend to be used can be
optionally selected with the optional gui argument.
This method only adds preloading the namespace to InteractiveShell.enable_matplotlib.
Parameters
gui : optional, string

 If given, dictates the choice of matplotlib GUI backend to use

 (should be one of IPython's supported backends, 'qt', 'osx', 'tk',

 'gtk', 'wx' or 'inline'), otherwise we use the default chosen by

 matplotlib (as dictated by the matplotlib build-time options plus the

 user's matplotlibrc configuration file).  Note that not all backends

 make sense in all contexts, for example a terminal ipython can't

```
 display figures inline.
```
import_all : optional, bool, default: True

 Whether to do `from numpy import *` and `from pylab import *`

```
 in addition to module imports.
```
welcome_message : deprecated

 This argument is ignored, no welcome message will be displayed.

"""
from IPython.core.pylabtools import import_pylab
gui, backend = self.enable_matplotlib(gui)
We want to prevent the loading of pylab to pollute the user's
namespace as shown by the %who* magics, so we execute the activation
code in an empty namespace, and we update both user_ns and
user_ns_hidden with this information.
ns = {}
import_pylab(ns, import_all)
warn about clobbered names
ignored = {"builtins"}
both = set(ns).intersection(self.user_ns).difference(ignored)
clobbered = [ name for name in both if self.user_ns[name] is not ns[name] ]
self.user_ns.update(ns)
self.user_ns_hidden.update(ns)
return gui, backend, clobbered

+#-------------------------------------------------------------------------
+# Utilities
+#-------------------------------------------------------------------------
+
+def var_expand(self, cmd, depth=0, formatter=DollarFormatter()):

"""Expand python variables in a string.
The depth argument indicates how many frames above the caller should
be walked to look for the local namespace where to expand variables.
The global namespace for expansion is always the user's interactive
namespace.
"""
ns = self.user_ns.copy()
try:
```
   frame = sys._getframe(depth+1)
```
except ValueError:

   # This is thrown if there aren't that many frames on the stack,

   # e.g. if a script called run_line_magic() directly.

```
   pass
```
else:
```
   ns.update(frame.f_locals)
```
try:

   # We have to use .vformat() here, because 'self' is a valid and common

   # name, and expanding **ns for .format() would make it collide with

   # the 'self' argument of the method.

   cmd = formatter.vformat(cmd, args=[], kwargs=ns)

except Exception:

   # if formatter couldn't format, just let it go untransformed

```
   pass
```
return cmd

+def mktempfile(self, data=None, prefix='ipython_edit_'):

"""Make a new tempfile and return its filename.
This makes a call to tempfile.mkstemp (created in a tempfile.mkdtemp),
but it registers the created filename internally so ipython cleans it up
at exit time.
Optional inputs:

 - data(None): if data is given, it gets written out to the temp file

   immediately, and the file is closed again."""

dirname = tempfile.mkdtemp(prefix=prefix)
self.tempdirs.append(dirname)
handle, filename = tempfile.mkstemp('.py', prefix, dir=dirname)
os.close(handle) # On Windows, there can only be one open handle on a file
self.tempfiles.append(filename)
if data:
```
   tmp_file = open(filename,'w')
```
```
   tmp_file.write(data)
```
```
   tmp_file.close()
```
return filename

+@undoc
+def write(self,data):

"""DEPRECATED: Write a string to the default output"""
warn('InteractiveShell.write() is deprecated, use sys.stdout instead',
```
    DeprecationWarning, stacklevel=2)
```
sys.stdout.write(data)

+@undoc
+def write_err(self,data):

"""DEPRECATED: Write a string to the default error output"""
warn('InteractiveShell.write_err() is deprecated, use sys.stderr instead',
```
    DeprecationWarning, stacklevel=2)
```
sys.stderr.write(data)

+def ask_yes_no(self, prompt, default=None, interrupt=None):

if self.quiet:
```
   return True
```
return ask_yes_no(prompt,default,interrupt)

+def show_usage(self):

"""Show a usage message"""
page.page(IPython.core.usage.interactive_usage)

+def extract_input_lines(self, range_str, raw=False):

"""Return as a string a set of input history slices.
Parameters
range_str : string

   The set of slices is given as a string, like "~5/6-~4/2 4:8 9",

   since this function is for use by magic functions which get their

   arguments as strings. The number before the / is the session

   number: ~n goes n back from the current session.

raw : bool, optional

   By default, the processed input is used.  If this is true, the raw

```
   input history is used instead.
```
Notes
Slices can be described with two notations:
- N:M -> standard python form, means including items N...(M-1).
- N-M -> include items N..M (closed endpoint).
"""
lines = self.history_manager.get_range_by_str(range_str, raw=raw)
return "\n".join(x for _, _, x in lines)

+def find_user_code(self, target, raw=True, py_only=False, skip_encoding_cookie=True, search_ns=False):

"""Get a code string from history, file, url, or a string or macro.
This is mainly used by magic functions.
Parameters
target : str

 A string specifying code to retrieve. This will be tried respectively

 as: ranges of input history (see %history for syntax), url,

 corresponding .py file, filename, or an expression evaluating to a

 string or Macro in the user namespace.

raw : bool

 If true (default), retrieve raw history. Has no effect on the other

```
 retrieval mechanisms.
```
py_only : bool (default False)

 Only try to fetch python code, do not try alternative methods to decode file

```
 if unicode fails.
```
Returns
A string of code.
ValueError is raised if nothing is found, and TypeError if it evaluates
to an object of another type. In each case, .args[0] is a printable
message.
"""
code = self.extract_input_lines(target, raw=raw) # Grab history
if code:
```
   return code
```
try:

   if target.startswith(('http://', 'https://')):

       return openpy.read_py_url(target, skip_encoding_cookie=skip_encoding_cookie)

except UnicodeDecodeError:
```
   if not py_only :
```
```
       # Deferred import
```

       from urllib.request import urlopen

```
       response = urlopen(target)
```

       return response.read().decode('latin1')

   raise ValueError(("'%s' seem to be unreadable.") % target)

potential_target = [target]
try :

   potential_target.insert(0,get_py_filename(target))

except IOError:
```
   pass
```
for tgt in potential_target :

   if os.path.isfile(tgt):                        # Read file

```
       try :
```

           return openpy.read_py_file(tgt, skip_encoding_cookie=skip_encoding_cookie)

```
       except UnicodeDecodeError :
```
```
           if not py_only :
```

               with io_open(tgt,'r', encoding='latin1') as f :

```
                   return f.read()
```

           raise ValueError(("'%s' seem to be unreadable.") % target)

   elif os.path.isdir(os.path.expanduser(tgt)):

       raise ValueError("'%s' is a directory, not a regular file." % target)

if search_ns:

   # Inspect namespace to load object source

   object_info = self.object_inspect(target, detail_level=1)

   if object_info['found'] and object_info['source']:

```
       return object_info['source']
```
try: # User namespace

   codeobj = eval(target, self.user_ns)

except Exception:

   raise ValueError(("'%s' was not found in history, as a file, url, "

                       "nor in the user namespace.") % target)

if isinstance(codeobj, str):
```
   return codeobj
```
elif isinstance(codeobj, Macro):
```
   return codeobj.value
```
raise TypeError("%s is neither a string nor a macro." % target,
```
               codeobj)
```

+#-------------------------------------------------------------------------
+# Things related to IPython exiting
+#-------------------------------------------------------------------------
+def atexit_operations(self):

"""This will be executed at the time of exit.
Cleanup operations and saving of persistent data that is done
unconditionally by IPython should be performed here.
For things that may depend on startup flags or platform specifics (such
as having readline or not), register a separate atexit function in the
code that has the appropriate information, rather than trying to
clutter
"""
Close the history session (this stores the end time and line count)
this must be before the tempfile cleanup, in case of temporary
history db
self.history_manager.end_session()
Cleanup all tempfiles and folders left around
for tfile in self.tempfiles:
```
   try:
```
```
       os.unlink(tfile)
```
```
   except OSError:
```
```
       pass
```
for tdir in self.tempdirs:
```
   try:
```
```
       os.rmdir(tdir)
```
```
   except OSError:
```
```
       pass
```
Clear all user namespaces to release all references cleanly.
self.reset(new_session=False)
Run user hooks
self.hooks.shutdown_hook()

+def cleanup(self):

self.restore_sys_module_state()

+# Overridden in terminal subclass to change prompts
+def switch_doctest_mode(self, mode):

pass

# Security Policy ## Supported Versions Use this section to tell people about which versions of your project are currently being supported with security updates. | Version | Supported | | ------- | ------------------ | | 5.1.x | ✅ | | 5.0.x | ❌ | | 4.0.x | ✅ | | < 4.0 | ❌ | ## Reporting a Vulnerability Use this section to tell people how to report a vulnerability. Tell them where to go, how often they can expect to get an update on a reported vulnerability, what to expect if the vulnerability is accepted or declined, etc.

Kinghat7977 · 2024-10-23T04:27:37Z

Lets give this a shot

Apidwalin added 4 commits July 23, 2021 09:16

Create codeql-analysis.yml

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SECURITY.md - #753

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Initializes the CodeQL tools for scanning.

Autobuild attempts to build any compiled languages (C/C++, C#, or Java).

If this step fails, then you should remove it and run the build manually (see below)

ℹ️ Command-line programs to run using the OS shell.

📚 https://git.io/JvXDl

✏️ If the Autobuild fails above, remove it and uncomment the following three lines

and modify them (or add more) to build your code if your project

uses a compiled language

make bootstrap

make release

Security Policy

Supported Versions

Reporting a Vulnerability

Tell them where to go, how often they can expect to get an update on a reported vulnerability, what to expect if the vulnerability is accepted or declined, etc.

Triggers the workflow on push or pull request events but only for the master branch

Allows you to run this workflow manually from the Actions tab

This workflow contains a single job called "build"

The type of runner that the job will run on

Steps represent a sequence of tasks that will be executed as part of the job

print(request.is_json)

image_base64 = request.form['image']

image = base64.b64decode(image_base64)

image = Image.open(BytesIO(image))

if image.mode != "RGB":

image.convert("RGB")

image_arr = np.array(image, dtype=np.uint8)

# print(image_arr)

start_date = time.time()

res = inference(sess, dectection_graph, image_arr)

end_date = time.time()

result_date = start_date - end_date

# print(res)

return jsonify(answer=res, status=True, captcha=res, time=format(math.floor(result_date)).replace("-","") + "s")

return {

"captcha": res,

"time": format(math.floor(result_date)).replace("-","") + "s"}

return jsonify(answer=res, status=True)

print(apiKey)

apiKey = 'Pong11299'

app.run(debug=True)

app.config["CACHE_TYPE"] = "null"

serve(TransLogger(app, setup_console_handler=False), threads=20, host = '0.0.0.0',port=5000)

serve(TransLogger(app, setup_console_handler=False), threads=40, host = '0.0.0.0',port=5000)

protect against weird cases where self.config may not exist:

This is where traits with a config_key argument are updated

from the values on config.

These are relatively independent and stateless

Check if we're in a virtualenv, and set up sys.path.

Create namespaces (user_ns, user_global_ns, etc.)

This has to be done after init_create_namespaces because it uses

something in self.user_ns, but before init_sys_modules, which

is the first thing to modify sys.

TODO: When we override sys.stdout and sys.stderr before this class

is created, we are saving the overridden ones here. Not sure if this

is what we want to do.

While we're trying to have each part of the code directly access what

it needs without keeping redundant references to objects, we have too

much legacy code that expects ip.db to exist.

The following was in post_config_initialization

TODO: init_io() needs to happen before init_traceback handlers

because the traceback handlers hardcode the stdout/stderr streams.

This logic in in debugger.Pdb and should eventually be changed.

command compiler

Make an empty namespace, which extension writers can rely on both

existing and NEVER being used by ipython itself. This gives them a

convenient location for storing additional information and state

their extensions may require, without fear of collisions with other

ipython names that may develop later.

Temporary files used for various purposes. Deleted at exit.

keep track of where we started running (mainly for crash post-mortem)

This is not being used anywhere currently.

Indentation management

Dict to track post-execution functions that have been registered

Get system encoding at startup time. Certain terminals (like Emacs

under Win32 have it set to None, and we need to have a known valid

Apidwalin commented Jul 23, 2021 •

edited

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Tell them where to go, how often they can expect to get an update on a
reported vulnerability, what to expect if the vulnerability is accepted or
declined, etc.