virtualenv python version code example
Example 1: python virtual env
$ pip install virtualenv
Example 2: python env
python3 -m venv tutorial-env
tutorial-env\Scripts\activate.bat (window)
source tutorial-env/bin/activate (linux)
Example 3: python virtual env
$ virtualenv --version
Example 4: virtualenv specify python version
virtualenv --python=/usr/bin/python2.6 <path/to/new/virtualenv/>
Example 5: python virtual env
$ source venv/bin/activate
Example 6: start virtualenv with python version
python3 -m venv <myenvname>