| 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950 | """Execute exactly this copy of pip, within a different environment.This file is named as it is, to ensure that this module can't be imported viaan import statement."""# /!\ This version compatibility check section must be Python 2 compatible. /!\import sys# Copied from setup.pyPYTHON_REQUIRES = (3, 7)def version_str(version):  # type: ignore    return ".".join(str(v) for v in version)if sys.version_info[:2] < PYTHON_REQUIRES:    raise SystemExit(        "This version of pip does not support python {} (requires >={}).".format(            version_str(sys.version_info[:2]), version_str(PYTHON_REQUIRES)        )    )# From here on, we can use Python 3 features, but the syntax must remain# Python 2 compatible.import runpy  # noqa: E402from importlib.machinery import PathFinder  # noqa: E402from os.path import dirname  # noqa: E402PIP_SOURCES_ROOT = dirname(dirname(__file__))class PipImportRedirectingFinder:    @classmethod    def find_spec(self, fullname, path=None, target=None):  # type: ignore        if fullname != "pip":            return None        spec = PathFinder.find_spec(fullname, [PIP_SOURCES_ROOT], target)        assert spec, (PIP_SOURCES_ROOT, fullname)        return specsys.meta_path.insert(0, PipImportRedirectingFinder())assert __name__ == "__main__", "Cannot run __pip-runner__.py as a non-main module"runpy.run_module("pip", run_name="__main__", alter_sys=True)
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