PIP

Windows: Python windows installer will install pip too.

Ubuntu/Debian:

~ sudo apt install python3-pip

Fedora:

~ sudo yum install python3

Arch/Manjaro:

~ sudo pacman -S python-pip

MacOS: Installing Python with brew will install pip too.

~ brew install python

Using pip too install a package: (pip3 command could be pip in some OSes like Windows, in Ubuntu it is pip3)

~ pip3 install package-name

uninstalling a package:

~ pip3 uninstall package-name