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[Fix]: fix mim command crashes problem if requirements version conflict #144

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[Fix]: fix mim command crashes problem if requirements version conflict #144

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fix(mim/__init__.py): fix the mim command crashes due to requirements…
ice-tong Jun 25, 2022
c8703b7
refine(mim/__init__.py): refine the comments
ice-tong Jun 25, 2022
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26 changes: 26 additions & 0 deletions mim/__init__.py
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Original file line number Diff line number Diff line change
@@ -1,4 +1,30 @@
# Copyright (c) OpenMMLab. All rights reserved.

# flake8: noqa

###### Fix mim command crashes problem if requirements version conflict. #######
# `pkg_resources` checks for a `__requires__` attribute in the `__main__` module
# when initializing the default working set, and resolves its dependency to
# ensure a suitable version of each affected distribution is activated.
#
# The entry point scripts create by `setuptools` use the `__requires__` feature
# for compatibility with `easy_install` but may cause mim crash when version
# conflict exists.
#
# To handle this situation, we set the `__requires__` declared in mim entry point
# script from 'openmim' to '' before importing pkg_resources. This workaround works
# fine so far, but not sure if it would cause other unknown problems or not.
#
# Related Links:
# - https://github.com/open-mmlab/mim/issues/143
# - https://setuptools.pypa.io/en/latest/pkg_resources.html?highlight=__requires__
# - https://github.com/pypa/setuptools/issues/2198

import sys

sys.modules['__main__'].__requires__ = '' # type: ignore
################################# The end! #####################################

from .commands import (
download,
get_model_info,
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