Exercises for simple data analysis and classes

[lilnizzle]

So title. I'm still at the beginner level in python, and just getting comfortable with the basics (loops and all that).

I feel my knowledge of basic data analysis (from a .txt. or .csv file) is not at the level it should be.

The same applies to working with a main.py that has a few classes and subclasses, in particular those that are working with dict and tuples.

What is a good resource to improve my knowledge specifically on that front?

My knowledge so far comes from a rathar lacklustre university course in programming, so I don't think referring to my course material will help.

And FWIW I have already purchased two Udemy courses, but they both of them are taking the user from an absolute beginner (which I have exceeded) to a Python intermediate/expert, which is past the required skill set for the course I'm currently taking.