virtualenvwrapper似乎忽略了VIRTUALENVWRAPPER_PYTHON

Question

我是python / virtualenv n00b，并尝试按照说明安装virtualenv / virtualenvwrapper.sh。

我通过以下方式安装了virtualenv和virtualenvwrapper.sh：

pip install virtualenv
pip install virtualenvwrapper

我的系统上安装了python3.5和python2.7 (Mac OS X El Capitan 10.11.4)

当我通过bash搜索python、python3、virtualenv和virtualenvwrapper.sh时，得到的结果如下：

which python ==> /usr/local/bin/python
which python3 ==> /usr/local/bin/python3
which virtualenv ==> /usr/local/bin/virtualenv
which virtualenvwrapper.sh ==> /usr/local/bin/virtualenvwrapper.sh

我将以下行添加到我的.bash_profile中：

export PATH=/usr/local/bin:$PATH
export VIRTUALENVWRAPPER_PYTHON=/usr/local/bin/python3.5
export WORKON_HOME=$HOME/.virtualenvs
export PROJECT_HOME=$HOME/Devel

source /usr/local/bin/virtualenvwrapper.sh

我的.bashrc文件基本上是空的，而我的.profile是我的.bash_profile的来源。

当我尝试使用virtualenvwrapper.sh命令(例如，'mkvirtualenv‘和'lsvirtualenv')时，它们可以工作，但默认的python仍然是Python2.7。

当我运行mkvirtualenv python3.5name时，默认的-p运行正常(即python3.5 )。

我做错了什么？为什么virtualenvwrapper可以识别指定的VIRTUALENVWRAPPER_PYTHON？

提前感谢你的帮助。真的很感谢

我尝试了：pip3 install virtualenv，得到了以下错误：

Traceback (most recent call last):
File "/usr/local/bin/pip3", line 5, in <module>
from pkg_resources import load_entry_point
File "/usr/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 3138, in <module>
@_call_aside
File "/usr/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 3124, in _call_aside
f(*args, **kwargs)
File "/usr/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 3151, in _initialize_master_working_set
working_set = WorkingSet._build_master()
File "/usr/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 663, in _build_master
return cls._build_from_requirements(__requires__)
File "/usr/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 676, in _build_from_requirements
dists = ws.resolve(reqs, Environment())
File "/usr/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 849, in resolve raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'pip==8.0.2' distribution was  
not found and is required by the application

Answer 1

如果有python3命令，就应该有pip3命令。如果没有pip3，pip可能只为python2.x安装。pip3将安装到python3，pip将安装到python。

尝试使用pip3安装virtualenv和virtualenvwrapper。