You should style your code according to the PEP 8 standard which was co-authored by Python’s creator Guido van Rossum. It has very high credibility and Python coders all around the world follow this style guide.
However, the style guide is quite lengthy and boring to read. I would rather recommend that you use an interactive style guide checker to improve your Python coding style over time. It’s also a lot more fun to fix code dynamically.
A great way to learn about how to format Python is an online Python style checker. Just copy&paste your code into the style checker and follow the instructions until your code reaches 100% style score.
These style checkers are mostly based on the official PEP 8 style guide.
Here’s an example of the Pythonchecker.com:
By hovering over the small notification question marks, you’ll get some tooltips that will help you to improve your Python style.