41 lines
1.2 KiB
Python
41 lines
1.2 KiB
Python
# Copyright 2018 Google Inc. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import contextlib
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import importlib
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import sys
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@contextlib.contextmanager
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def no_third_party_dir_on_path():
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old_path = sys.path
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try:
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# This works because we insert the third_party dir on the front of
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# sys.path on start up.
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sys.path = sys.path[1:]
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yield
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finally:
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sys.path = old_path
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if sys.version_info < (3,):
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from concurrent.python2.concurrent import *
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from concurrent import futures
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else:
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# Delete cached concurrent module
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del sys.modules['concurrent']
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with no_third_party_dir_on_path():
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spec = importlib.util.find_spec('concurrent.futures')
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futures = importlib.util.module_from_spec(spec)
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spec.loader.exec_module(futures)
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