python virtualenv specific python version code example
Example 1: uses specific version python venv
# Use python version 3.7.3 for tensorflow
pip install virtualenv
virtualenv -p PYTHONPATH <path/to/new/virtualenv/>
Example 2: virtualenv specify python version
virtualenv --python=/usr/bin/python2.6 <path/to/new/virtualenv/>
Example 3: start virtualenv with python version
python3 -m venv <myenvname>