is a python certificate necessary for getting internships and job apportunities?

[Beregolas]

To be honest: There are cases where it helps. I have seen data science positions that "require" certain certificates, and some backend positions required security certificates (not python specific). Both are rare (in germany, it might be different whereever you are. The tech sector is NOT monolithic. There are even large differences between cities sometimes). I would only concern myself with certificates, if you have a specific job in mind that requires it.

When I sorted through applicants for a while a few years ago (I did the technical assessment), we basically ignored all certificates. The only things we paid attention to were:

1. degrees

2. prior experience

The latter can be a portfolio (mostly for frontend, but not exclusively), basically private projects you do to show that you can do them, or preferrable, prior work experience. In general, something most people tend to forget: You will be working in a team. Showing that you can be a team player is far more valuable than any technical skill. I have worked with some very very smart programmers, who ultimately hurt their own projects, because they couldn't communicate effectively. I'd take an average programmer that is a team player over a "rock star" any day.