python venv example
Example 1: python virtual environment
python3 -m venv env
python -m virtualenv env #py2
source env/bin/activate
#all this is on same directory
Example 2: virtual environment python
python3 -m venv env
python3 -m venv env
python -m virtualenv env #py2
source env/bin/activate
#all this is on same directory
python3 -m venv env