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  • Create your first isolated Python environment

    # Install virtualenv for Python 2.7 and create a sandbox called my27project:
    pip2.7 install virtualenv
    virtualenv-2.7 my27project
     
    # Use the built-in pyvenv program in Python 3.3 to create a sandbox called my33project:
    pyvenv-3.3 my33project
     
    # Check the system Python interpreter version:
    python --version
    # This will show Python 2.6.6
     
    # Activate the my27project sandbox and check the version of the default Python interpreter in it:
    source my27project/bin/activate
    python --version
    # This will show Python 2.7.6
    deactivate
     
    # Activate the my33project sandbox and check the version of the default Python interpreter in it:
    source my33project/bin/activate
    python --version
    # This will show Python 3.3.5
    deactivate

    When you use virtualenv to create a sandbox it will automatically install setuptools and pip for you inside the sandbox. If you use pyvenv then you must do it yourself. You can reuse the ez_setup.py file you downloaded earlier and just run it after you activate your new sandbox.

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  • 原文地址:https://www.cnblogs.com/abclife/p/4735762.html
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