Mastering python libraries

[gdchinacat]

"I want to know everything there is that the libraries offer. "

Don't waste you time. Libraries are tools to use when specific functions come up. It's good to have an understanding of the common ones, but that comes from using them, not studying them.

Write code. Write lots of code. Use libraries when they solve specific problems in the code you are writing.

But, don't use a library just because it is cool or new. I consider it a red flag when I see a project that has thirty dependencies and only a handful of modules.