问如何在virtualenv中使用Python 3？

比如sudo virtualenv envPython3

virtualenv -p python3 test

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