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Switch correctly to the user's default matplotlib backend after inline....
Switch correctly to the user's default matplotlib backend after inline. If '%matplotlib inline' was called first, we'd incorrectly revert to inline when plain '%matplotlib' was called, instead of loading the user's default GUI. If the user called '%matplotlib' first (without 'inline') it worked correctly, but not in the other order. The fix is to read the backend from the original defaults, not from the runtime data structure.

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__init__.py
144 lines | 5.5 KiB | text/x-python | PythonLexer
# encoding: utf-8
"""
IPython: tools for interactive and parallel computing in Python.
http://ipython.org
"""
#-----------------------------------------------------------------------------
# Copyright (c) 2008-2011, IPython Development Team.
# Copyright (c) 2001-2007, Fernando Perez <fernando.perez@colorado.edu>
# Copyright (c) 2001, Janko Hauser <jhauser@zscout.de>
# Copyright (c) 2001, Nathaniel Gray <n8gray@caltech.edu>
#
# Distributed under the terms of the Modified BSD License.
#
# The full license is in the file COPYING.txt, distributed with this software.
#-----------------------------------------------------------------------------
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------
from __future__ import absolute_import
import os
import sys
#-----------------------------------------------------------------------------
# Setup everything
#-----------------------------------------------------------------------------
# Don't forget to also update setup.py when this changes!
if sys.version_info[:2] < (2,7):
raise ImportError('IPython requires Python Version 2.7 or above.')
# Make it easy to import extensions - they are always directly on pythonpath.
# Therefore, non-IPython modules can be added to extensions directory.
# This should probably be in ipapp.py.
sys.path.append(os.path.join(os.path.dirname(__file__), "extensions"))
#-----------------------------------------------------------------------------
# Setup the top level names
#-----------------------------------------------------------------------------
from .config.loader import Config
from .core.getipython import get_ipython
from .core import release
from .core.application import Application
from .terminal.embed import embed
from .core.error import TryNext
from .core.interactiveshell import InteractiveShell
from .testing import test
from .utils.sysinfo import sys_info
from .utils.frame import extract_module_locals
# Release data
__author__ = '%s <%s>' % (release.author, release.author_email)
__license__ = release.license
__version__ = release.version
version_info = release.version_info
def embed_kernel(module=None, local_ns=None, **kwargs):
"""Embed and start an IPython kernel in a given scope.
If you don't want the kernel to initialize the namespace
from the scope of the surrounding function,
and/or you want to load full IPython configuration,
you probably want `IPython.start_kernel()` instead.
Parameters
----------
module : ModuleType, optional
The module to load into IPython globals (default: caller)
local_ns : dict, optional
The namespace to load into IPython user namespace (default: caller)
kwargs : various, optional
Further keyword args are relayed to the IPKernelApp constructor,
allowing configuration of the Kernel. Will only have an effect
on the first embed_kernel call for a given process.
"""
(caller_module, caller_locals) = extract_module_locals(1)
if module is None:
module = caller_module
if local_ns is None:
local_ns = caller_locals
# Only import .zmq when we really need it
from IPython.kernel.zmq.embed import embed_kernel as real_embed_kernel
real_embed_kernel(module=module, local_ns=local_ns, **kwargs)
def start_ipython(argv=None, **kwargs):
"""Launch a normal IPython instance (as opposed to embedded)
`IPython.embed()` puts a shell in a particular calling scope,
such as a function or method for debugging purposes,
which is often not desirable.
`start_ipython()` does full, regular IPython initialization,
including loading startup files, configuration, etc.
much of which is skipped by `embed()`.
This is a public API method, and will survive implementation changes.
Parameters
----------
argv : list or None, optional
If unspecified or None, IPython will parse command-line options from sys.argv.
To prevent any command-line parsing, pass an empty list: `argv=[]`.
user_ns : dict, optional
specify this dictionary to initialize the IPython user namespace with particular values.
kwargs : various, optional
Any other kwargs will be passed to the Application constructor,
such as `config`.
"""
from IPython.terminal.ipapp import launch_new_instance
return launch_new_instance(argv=argv, **kwargs)
def start_kernel(argv=None, **kwargs):
"""Launch a normal IPython kernel instance (as opposed to embedded)
`IPython.embed_kernel()` puts a shell in a particular calling scope,
such as a function or method for debugging purposes,
which is often not desirable.
`start_kernel()` does full, regular IPython initialization,
including loading startup files, configuration, etc.
much of which is skipped by `embed()`.
Parameters
----------
argv : list or None, optional
If unspecified or None, IPython will parse command-line options from sys.argv.
To prevent any command-line parsing, pass an empty list: `argv=[]`.
user_ns : dict, optional
specify this dictionary to initialize the IPython user namespace with particular values.
kwargs : various, optional
Any other kwargs will be passed to the Application constructor,
such as `config`.
"""
from IPython.kernel.zmq.kernelapp import launch_new_instance
return launch_new_instance(argv=argv, **kwargs)