virtual environment with python3.6 code example
Example 1: create virtual environment python 3
python3 -m venv /path/to/new/virtual/environment
Example 2: virtualenv python2
virtualenv --python=/usr/bin/python2.6 <path/to/new/virtualenv/>
python3 -m venv /path/to/new/virtual/environment
virtualenv --python=/usr/bin/python2.6 <path/to/new/virtualenv/>