将Python3传递给virtualenvwrapper会引发ImportError

Question

我正在尝试使用virtualenvwrapper基于python 3的方法virtualenv.但是,当我传递可选的解释器参数时,我看到了这个错误.我正在运行Ubuntu 15.04.我尝试重新安装virtualenv,virtualenvwrapper但没有成功.感谢你的帮助!

$ mkvirtualenv scriptcutter --python=/usr/bin/python3
Running virtualenv with interpreter /usr/bin/python3
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/virtualenv.py", line 8, in <module>
    import base64
  File "/usr/lib/python3.4/base64.py", line 9, in <module>
    import re
  File "/usr/lib/python3.4/re.py", line 336, in <module>
    import copyreg
  File "/usr/local/lib/python2.7/dist-packages/copyreg/__init__.py", line 7, in <module>
    raise ImportError('This package should not be accessible on Python 3. '
ImportError: This package should not be accessible on Python 3. Either you are trying to run from the python-future src folder or your installation of python-future is corrupted.
Error in sys.excepthook:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/apport_python_hook.py", line 53, in apport_excepthook
    if not enabled():
  File "/usr/lib/python3/dist-packages/apport_python_hook.py", line 24, in enabled
    import re
  File "/usr/lib/python3.4/re.py", line 336, in <module>
    import copyreg
  File "/usr/local/lib/python2.7/dist-packages/copyreg/__init__.py", line 7, in <module>
    raise ImportError('This package should not be accessible on Python 3. '
ImportError: This package should not be accessible on Python 3. Either you are trying to run from the python-future src folder or your installation of python-future is corrupted.

Original exception was:
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/virtualenv.py", line 8, in <module>
    import base64
  File "/usr/lib/python3.4/base64.py", line 9, in <module>
    import re
  File "/usr/lib/python3.4/re.py", line 336, in <module>
    import copyreg
  File "/usr/local/lib/python2.7/dist-packages/copyreg/__init__.py", line 7, in <module>
    raise ImportError('This package should not be accessible on Python 3. '
ImportError: This package should not be accessible on Python 3. Either you are trying to run from the python-future src folder or your installation of python-future is corrupted.

Answer 1

我遇到了同样的问题,但在我将virtualenv降级到12.0.2之后,这个问题就消失了.

Answer 2

这是目前的一种解决方法。

创建一个virtualenv使用pyvenv.

# install pyvenv on Ubuntu
sudo apt-get install python3-venv

为了最大限度地减少对正常工作流程的干扰，请传递与使用的目标目录相同的目标目录，virtualenvwrapper如下所示，

pyvenv example ~/.virtualenvs/example

这会自动使用workon和cdproject命令。我没有使用太多其他提供的virtualenvwrapper

希望这可以帮助。