The pip show command is used to return information about a package that was installed using pip.

Something like this should be returned if a package has not be installed using pip.

~]$ pip3 show jinja
WARNING: Package(s) not found: jinja

Here is an example of what could be returned when the show command finds an installed package.

~]$ pip3 show jinja2
Name: Jinja2
Version: 2.11.2
Summary: A very fast and expressive template engine.
Home-page: https://palletsprojects.com/p/jinja/
Author: Armin Ronacher
Author-email: armin.ronacher@active-4.com
License: BSD-3-Clause
Location: /usr/local/lib64/python3.6/site-packages
Requires: MarkupSafe
Required-by: ansible