问如何在virtualenv中使用Python 3？

提问于 2017-12-20 14:53:18

回答 2关注 0查看 851

使用virtualenv，我使用默认版本的Python（2.7）运行我的项目。在一个项目中，我需要使用Python 3.4。

我曾经brew install python3在我的Mac上安装它。现在，我如何创建一个使用新版本的virtualenv？

比如sudo virtualenv envPython3

如果我尝试：

virtualenv -p python3 test

我得到：

Running virtualenv with interpreter /usr/local/bin/python3

Using base prefix '/usr/local/Cellar/python3/3.4.0_1/Frameworks/Python.framework/Versions/3.4'

New python executable in test/bin/python3.4

Also creating executable in test/bin/python

Failed to import the site module

Traceback (most recent call last):

  File "/Users/user/Documents/workspace/test/test/bin/../lib/python3.4/site.py", line 67, in <module>

    import os

  File "/Users/user/Documents/workspace/test/test/bin/../lib/python3.4/os.py", line 634, in <module>

    from _collections_abc import MutableMapping

ImportError: No module named '_collections_abc'

ERROR: The executable test/bin/python3.4 is not functioning

ERROR: It thinks sys.prefix is '/Users/user/Documents/workspace/test' (should be '/Users/user/Documents/workspace/test/test')

ERROR: virtualenv is not compatible with this system or executable

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