I am learning perl and python... at the same time, not my by design but it has to be done.
Question:
In a perl script I use(see below) at the head of my txt.
LeoNerd's provides a great explanation as to why there is no 'use strict' or 'use warnings' in Python.
In answer to:
Is there something I should be doing on routine for my python scripts?
You may be interested in running your code through a static code analyser like pylint, and/or a code formatting check such as pep8.
They can help to find potential problems, and flag warnings. They also have a lot to say about the formatting of your code, which you may or may not be interested in.
Here is a decent rationale for their use. And related Stackoverflow questions here and here.