Virtualenvwrapper Switch between Python versions using __python

Environment: python2.7 and python3.4 installed, virtualenv and Virtualenvwrapper are installed in all two versions

In Windows cmd, type mkvirtualenv-p C:\Python34\python.exe env3.4, where C:\Python34\python.exe is specifying that the Python parser is version 3.4, If you want to specify version 2.7, replace the 2.7 installation directory; env3.4 refers to the name of the virtual environment you want to create.

The following figure is the process of generating a python3.4 virtual environment

The following figure is the process of generating the python2.7 virtual environment, which is indeed 2.7 after the generation of the Python verified version.