how to create python3.6 virtual environment in ubuntu code example

Example 1: how to create a virtual environment in python ubuntu

python3 -m venv name_environment #this creates the virtual environment

source name_environment/bin/activate #this activates the virtual environment

#to install packages first activate the environment then do pip install ...

Example 2: python virtualenv ubuntu

$ pip install virtualenv
$ pip install virtualenvwrapper

// Append ~/.bashrc
export VIRTUALENVWRAPPER_PYTHON=/usr/bin/python3
export WORKON_HOME=$HOME/.virtualenvs
export VIRTUALENVWRAPPER_VIRTUALENV=/$HOME/.local/bin/virtualenv
source ~/.local/bin/virtualenvwrapper.sh