mirror of
https://github.com/moparisthebest/SickRage
synced 2024-12-13 11:32:20 -05:00
96 lines
3.7 KiB
Python
96 lines
3.7 KiB
Python
"""
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Copyright (c) Donald Stufft, pip, and individual contributors
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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"""
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from __future__ import absolute_import
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import sys
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class VendorAlias(object):
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def __init__(self):
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self._vendor_name = __name__
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self._vendor_pkg = self._vendor_name + "."
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def find_module(self, fullname, path=None):
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if fullname.startswith(self._vendor_pkg):
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return self
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def load_module(self, name):
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# Ensure that this only works for the vendored name
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if not name.startswith(self._vendor_pkg):
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raise ImportError(
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"Cannot import %s, must be a subpackage of '%s'." % (
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name, self._vendor_name,
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)
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)
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# Check to see if we already have this item in sys.modules, if we do
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# then simply return that.
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if name in sys.modules:
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return sys.modules[name]
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# Check to see if we can import the vendor name
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try:
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# We do this dance here because we want to try and import this
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# module without hitting a recursion error because of a bunch of
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# VendorAlias instances on sys.meta_path
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real_meta_path = sys.meta_path[:]
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try:
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sys.meta_path = [
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m for m in sys.meta_path
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if not isinstance(m, VendorAlias)
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]
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__import__(name)
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module = sys.modules[name]
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finally:
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# Re-add any additions to sys.meta_path that were made while
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# during the import we just did, otherwise things like
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# requests.packages.urllib3.poolmanager will fail.
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for m in sys.meta_path:
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if m not in real_meta_path:
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real_meta_path.append(m)
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# Restore sys.meta_path with any new items.
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sys.meta_path = real_meta_path
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except ImportError:
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# We can't import the vendor name, so we'll try to import the
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# "real" name.
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real_name = name[len(self._vendor_pkg):]
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try:
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__import__(real_name)
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module = sys.modules[real_name]
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except ImportError:
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raise ImportError("No module named '%s'" % (name,))
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# If we've gotten here we've found the module we're looking for, either
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# as part of our vendored package, or as the real name, so we'll add
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# it to sys.modules as the vendored name so that we don't have to do
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# the lookup again.
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sys.modules[name] = module
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# Finally, return the loaded module
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return module
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sys.meta_path.append(VendorAlias())
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