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Virtual environment (venv) package for Python. Based on PEP 405.

Copyright (C) 2011-2012 Vinay Sajip.
Licensed to the PSF under a contributor agreement.

usage: python -m venv [-h] [--system-site-packages] [--symlinks] [--clear]
            [--upgrade]
            ENV_DIR [ENV_DIR ...]

Creates virtual Python environments in one or more target directories.

positional arguments:
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optional arguments:
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  --system-site-packages
                        Give the virtual environment access to the system
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  --symlinks            Attempt to symlink rather than copy.
  --clear               Delete the environment directory if it already exists.
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  --upgrade             Upgrade the environment directory to use this version
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