how to install virtualenv code example

Example 1: install virtualenv

pip install virtualenv

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

Example 2: 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 3: python install library in virtualenv

# ------- How to use a virtual environment on MAC? -------- #
# Use the command line to:

 1º - Instal Python3 and pip3
  
  
 2º - Create a folder for your virtual environment:
 
  >> cd "path_to_the_place_you_want_to_locate_your_folder"
  
  >> python3 -m venv "name_of_env"
  
  
 3º - Activate this virtual environment:

  >> source "name_of_env"/bin/activate
  
  
 4º - Now you can install new things inside this environment:
  
  >> pip3 install django  # for example

Example 4: python install virtualenv

python3.8 -m pip install --user virtualenv
python3.8 -m virtualenv --help

Example 5: how to make virtual environment

virtualenv mypython

Example 6: install virtualenv Python

pip install virtualenv