After Python 101 (intro to CS), what python courses should I take to get into pentesting and defensive work?

Looking into OCO/DCO work. I've done an intro to python course the uses the content from John Zelle's "Python Programming: An Introduction to Computer Science."

From here, I'm wondering where I should go. My school doesn't offer any python courses related to cyber, so I was wondering if there were any python programming courses online or elsewhere that will help me bridge the gap between the introductory knowledge I have know and the python security knowledge I'll need to have …

courses cybersecurity defensive pentesting python work