python3 install virtualenv code example

Example 1: install virtualenv

pip install virtualenv

activate it by doing this:
cd myproject/Scripts/activate

Example 2: virtualenv -p python3

virtualenv -p python3.6 venv

For simple python3

virtualenv -p python3 venv

Example 3: how to create a new virtualenv

to make a new virtualenv: 
virtualenv env_name

             to activate this virtual environment:
source env_name/bin/activate (on mac and linux)
source env_name/Scripts/activate (on windows)

Example 4: create virtual environment python 3

python3 -m venv /path/to/new/virtual/environment

Example 5: how to use virtual environment python

python3 -m pip install --user virtualenv

Example 6: pip3 venv install

python3 -m venv /path/to/new/virtual/environment
source <venv>/bin/activate