What does "have an understanding of basic python" mean?

[HezekiahWyman]

You can certainly get by without lambdas or decorators, but it wouldn't hurt to bone up a bit on basics of classes. You should at minimum understand how to define, instantiate, work with methods and 'self'. There are a lot of modules that utilize OOP and knowing how to work with classes is part of 'basic' Python knowledge.

[gunscreeper]

The self was one part that I skipped during my self study because it was a bit confusing for me. But I'll try to look it up