If Python could not import the module virtualenvwrapper.hook_loader,

virtualenvwrapper.sh: There was a problem running the initialization hooks.

If Python could not import the module virtualenvwrapper.hook_loader,

check that virtualenvwrapper has been installed for

VIRTUALENVWRAPPER_PYTHON= and that PATH is

set properly.

解决办法：

~/.bashrc文件重新添加python有关的环境变量

export VIRTUALENVWRAPPER_PYTHON=/usr/bin/python3

注意上面的路径一定要是真实的。