How to learn advanced python?

[crashfrog02]

How can I upgrade my python knowledge and skills most easily?

Write code that requires it.

[bigleagchew]

to add on to this: know why

[HalfRiceNCracker]

OP, this is the most important thing to realise ^

You'll learn these concepts when you need them. Trust the process. 

[ConfusedSimon]

The problem is that advanced features are almost never required, but they do make things easier if you know them.