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author | monster <monster@ydb.tech> | 2022-07-07 14:41:37 +0300 |
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committer | monster <monster@ydb.tech> | 2022-07-07 14:41:37 +0300 |
commit | 06e5c21a835c0e923506c4ff27929f34e00761c2 (patch) | |
tree | 75efcbc6854ef9bd476eb8bf00cc5c900da436a2 /contrib/python/ipython/py2/IPython/core/extensions.py | |
parent | 03f024c4412e3aa613bb543cf1660176320ba8f4 (diff) | |
download | ydb-06e5c21a835c0e923506c4ff27929f34e00761c2.tar.gz |
fix ya.make
Diffstat (limited to 'contrib/python/ipython/py2/IPython/core/extensions.py')
-rw-r--r-- | contrib/python/ipython/py2/IPython/core/extensions.py | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/contrib/python/ipython/py2/IPython/core/extensions.py b/contrib/python/ipython/py2/IPython/core/extensions.py deleted file mode 100644 index 58855466f1..0000000000 --- a/contrib/python/ipython/py2/IPython/core/extensions.py +++ /dev/null @@ -1,173 +0,0 @@ -# encoding: utf-8 -"""A class for managing IPython extensions.""" - -# Copyright (c) IPython Development Team. -# Distributed under the terms of the Modified BSD License. - -import os -from shutil import copyfile -import sys - -from traitlets.config.configurable import Configurable -from IPython.utils.path import ensure_dir_exists -from traitlets import Instance - -try: - from importlib import reload -except ImportError : - ## deprecated since 3.4 - from imp import reload - -#----------------------------------------------------------------------------- -# Main class -#----------------------------------------------------------------------------- - -class ExtensionManager(Configurable): - """A class to manage IPython extensions. - - An IPython extension is an importable Python module that has - a function with the signature:: - - def load_ipython_extension(ipython): - # Do things with ipython - - This function is called after your extension is imported and the - currently active :class:`InteractiveShell` instance is passed as - the only argument. You can do anything you want with IPython at - that point, including defining new magic and aliases, adding new - components, etc. - - You can also optionally define an :func:`unload_ipython_extension(ipython)` - function, which will be called if the user unloads or reloads the extension. - The extension manager will only call :func:`load_ipython_extension` again - if the extension is reloaded. - - You can put your extension modules anywhere you want, as long as - they can be imported by Python's standard import mechanism. However, - to make it easy to write extensions, you can also put your extensions - in ``os.path.join(self.ipython_dir, 'extensions')``. This directory - is added to ``sys.path`` automatically. - """ - - shell = Instance('IPython.core.interactiveshell.InteractiveShellABC', allow_none=True) - - def __init__(self, shell=None, **kwargs): - super(ExtensionManager, self).__init__(shell=shell, **kwargs) - self.shell.observe( - self._on_ipython_dir_changed, names=('ipython_dir',) - ) - self.loaded = set() - - @property - def ipython_extension_dir(self): - return os.path.join(self.shell.ipython_dir, u'extensions') - - def _on_ipython_dir_changed(self, change): - ensure_dir_exists(self.ipython_extension_dir) - - def load_extension(self, module_str): - """Load an IPython extension by its module name. - - Returns the string "already loaded" if the extension is already loaded, - "no load function" if the module doesn't have a load_ipython_extension - function, or None if it succeeded. - """ - if module_str in self.loaded: - return "already loaded" - - with self.shell.builtin_trap: - if module_str not in sys.modules: - try: - sys.modules[module_str] = __import__('IPython.extensions.' + module_str) - except ImportError: - __import__(module_str) - mod = sys.modules[module_str] - if self._call_load_ipython_extension(mod): - self.loaded.add(module_str) - else: - return "no load function" - - def unload_extension(self, module_str): - """Unload an IPython extension by its module name. - - This function looks up the extension's name in ``sys.modules`` and - simply calls ``mod.unload_ipython_extension(self)``. - - Returns the string "no unload function" if the extension doesn't define - a function to unload itself, "not loaded" if the extension isn't loaded, - otherwise None. - """ - if module_str not in self.loaded: - return "not loaded" - - if module_str in sys.modules: - mod = sys.modules[module_str] - if self._call_unload_ipython_extension(mod): - self.loaded.discard(module_str) - else: - return "no unload function" - - def reload_extension(self, module_str): - """Reload an IPython extension by calling reload. - - If the module has not been loaded before, - :meth:`InteractiveShell.load_extension` is called. Otherwise - :func:`reload` is called and then the :func:`load_ipython_extension` - function of the module, if it exists is called. - """ - from IPython.utils.syspathcontext import prepended_to_syspath - - if (module_str in self.loaded) and (module_str in sys.modules): - self.unload_extension(module_str) - mod = sys.modules[module_str] - with prepended_to_syspath(self.ipython_extension_dir): - reload(mod) - if self._call_load_ipython_extension(mod): - self.loaded.add(module_str) - else: - self.load_extension(module_str) - - def _call_load_ipython_extension(self, mod): - if hasattr(mod, 'load_ipython_extension'): - mod.load_ipython_extension(self.shell) - return True - - def _call_unload_ipython_extension(self, mod): - if hasattr(mod, 'unload_ipython_extension'): - mod.unload_ipython_extension(self.shell) - return True - - def install_extension(self, url, filename=None): - """Download and install an IPython extension. - - If filename is given, the file will be so named (inside the extension - directory). Otherwise, the name from the URL will be used. The file must - have a .py or .zip extension; otherwise, a ValueError will be raised. - - Returns the full path to the installed file. - """ - # Ensure the extension directory exists - ensure_dir_exists(self.ipython_extension_dir) - - if os.path.isfile(url): - src_filename = os.path.basename(url) - copy = copyfile - else: - # Deferred imports - try: - from urllib.parse import urlparse # Py3 - from urllib.request import urlretrieve - except ImportError: - from urlparse import urlparse - from urllib import urlretrieve - src_filename = urlparse(url).path.split('/')[-1] - copy = urlretrieve - - if filename is None: - filename = src_filename - if os.path.splitext(filename)[1] not in ('.py', '.zip'): - raise ValueError("The file must have a .py or .zip extension", filename) - - filename = os.path.join(self.ipython_extension_dir, filename) - copy(url, filename) - return filename |