python virtualenv install code example

Example 1: install virtualenv

pip install virtualenv

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

Example 2: python virtual environment

python3 -m venv env
python -m virtualenv env #py2

source env/bin/activate

#all this is on same directory

Example 3: create a venv

# Create the virtual environment.
python -m venv venv

# Activate the env.
venv\Scripts\activate.bat

Example 4: 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 5: python install virtualenv

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

Example 6: python virtual environment

source env/bin/activate