How to make a python2.7 based virtualenv with TF and Keras

The name of the virtual environment is: py2env.

1. Create the Virtualenv

From the Terminal, go to the user folder and create the virtualenv:

$ cd ~ $ virtualenv -p /usr/bin/python2.7 py2env

If there is an error, try installing python-dev:

sudo apt-get install python-dev

A new folder is created: py2env.

##2.