What is PIP: Pip is a module or package management system used to install and manage software packages found in the Python Package Index
Note: PIP is a replacement for easy install. Here are the steps to upgrade and downgrade PIP.
Upgrade PIP: Run the following command below to upgrade the Pip to version to 20.0.2 from 19.2.3
python -m pip install --upgrade pip
See the version of installed PIP, run the command below
$ pip --version pip 20.0.2 from /usr/lib/python2.7/site-packages/pip (python 2.7)
Downgrade PIP: The version you wish to downgrade to needs to be specified as shown below.
$ python -m pip install pip==19.2