What is the easiest way to remove all packages installed by pip?
The easiest way to remove all packages installed by pip is to use the command pip freeze to get a list of all installed packages, and then pipe that list to pip uninstall -y, like this:
pip freeze | xargs pip uninstall -y
This will remove all packages that were installed using pip. It is worth noting that this command will not remove packages that were installed using other methods, such as apt-get or by building from source.