create python3 venv code example

Example 1: how to create a python venv

python3 -m venv tutorial-env

Example 2: virtual environment python

### VIRTUAL ENVIRONMENT 

pip install virtualenv

virtualenv pas # write the folder name 

.\foldername\Scripts\activate # to activate the virtual environment 

pip freeze # to get all the modules in the base interpretor / virtual env

pip freeze > requirements.txt # to set the modules and their versions in the requirement file 

pip install -r requirements.txt # to install all the modules with their respected versions in the virtual env

virtualenv --system-site-packages-foldername # this creates virtual env with all the modules and versions that are preinstalled on base python interpretor 

deactivate # to come out of the virtual env

Example 3: create a virtual environment python 3

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

Example 4: how to make a venv python

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

source env/bin/activate

#all this is on same directory

Example 5: python3 -m venv venv

$userenv = [System.Environment]::GetEnvironmentVariable("Path", "User")

[System.Environment]::SetEnvironmentVariable("PATH", $userenv + ";C:\Users\Admin\Ubuntu", "User")