How to upgrade pip/pip3 package installer for Python

If you are using pip or pip3 package installer for Python, then you must have seen that when you do not upgrade your package utility, a warning is displayed after each time you try to install a new package or update one.

WARNING: You are using pip version 19 however version 21 is available

In order to update pip or pip3 package installer you can run the below command.

To upgrade pip package:

pip install --upgrade pip --user

To upgrade pip3 package:

pip3 install --upgrade pip --user

% pip3 install --upgrade pip --user
Collecting pip
  Using cached https://files.pythonhosted.org/packages/47/ca/d/pip-21.1.3-py3-none-any.whl
Installing collected packages: pip
Successfully installed pip-21.1.3

Note: if you do not provide the --user parameter you might get Error 13 while updating pip

If you have the pip3 package installed and you try to use the pip command you will get the error: zsh: command not found: pip