在virtualenv中使用Python 3

问题：

Using virtualenv , I run my projects with the default version of Python (2.7). 使用virtualenv ，我使用默认版本的Python（2.7）运行项目。 On one project, I need to use Python 3.4. 在一个项目中，我需要使用Python 3.4。

I used brew install python3 to install it on my Mac. 我使用brew install python3将其安装在Mac上。 Now, how do I create a virtualenv that uses the new version? 现在，如何创建使用新版本的virtualenv？

eg sudo virtualenv envPython3 例如sudo virtualenv envPython3

If I try: 如果我尝试：

virtualenv -p python3 test

I get: 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

解决方案：

参考一： https://stackoom.com/question/1c2Zt/在virtualenv中使用Python
参考二： https://oldbug.net/q/1c2Zt/Using-Python-3-in-virtualenv

来源：oschina

链接：https://my.oschina.net/u/4437884/blog/4255687

标签

python

virtualenv

BREW