python 3.9 virtual env code example
Example 1: python create virtualenv
pip install virtualenv # install first
cd projectfolder # go to project folder
python -m venv ./venv # Create a virtual environment named venv
Activate.ps1 # (powershell) start the file to start the environment
activate.bat # (cmd) start the file to start the environment
# if it worked you'll see a (venv) in front of your cursor path
Example 2: activate venv
venv\Scripts\activate.bat