create-virtual-environment-for-python.md

Create and set up virtual environment

Create a virtual environment venv in the current folder

with python -m we run the following command as a command in python

python -m venv .venv

Activate the venv

(from the folder where .venv is)

.venv\Scripts\activate

All the following commands are meant to be executed in the activated virtual environment, they can be preceded by python -m

Install a package , specify the version

python -m pip install <package>~=4.0.0

Uninstall a package

python -m pip uninstall [options] <package>

Write or update the requirement file

python -m pip freeze > requirements.txt

Install from requirements, update the packages

python -m pip install -r requirements.txt --upgrade

Uninstall packages from the requirements

python -m pip uninstall -r requirements.txt

List the installed packages

python -m pip list