Thanks
So, you might be able to dabble enough while staying productive with C#. Take a look at ML.NET: https://docs.microsoft.com/en-us/dotnet/machine-learning/
Edit: And everything you learn from that experience will still be useful if you decide later on to dive deeper with Python.
1. Python Crash Course https://nostarch.com/pythoncrashcourse2e
2. Automate the Boring Stuff with Python https://nostarch.com/automatestuff2
The first book will help you to understand the basic concept of programming with Python. It also contains some projects that you can follow in the last chapters. The second book is about automating stuff that are done manually. Let's say, you usually do something over and over again. You can try to automate them using Python. The key of learning programming is practice. If you are curious about other book, you can check https://nostarch.com/catalog/python.
I heard good stuff about Learn Python The Hard Way. But, I've never tried the course. It's a paid course. You can take a look on https://learnpythonthehardway.org/python3/.
For Python eco-system related concepts like virtual environment, testing, and other modules, [2] is good.
I don't have any experience with AI/ML, [3] might help if you are looking for books.
[0] https://docs.python.org/3/tutorial/
[1] https://github.com/jakevdp/WhirlwindTourOfPython
[3] https://pythonbooks.org/topical-books/machine-learning-and-a...
The only complication is learning command line bullshit and basically copypasta of hopefully benign incomprehensible commands rather than clear UIs, which has been creeping into .Net anyway.
Also check out the various community resources. The #python channel on Freenode is good. On Reddit there is https://www.reddit.com/r/learnpython/
I can't comment on the quality of the course as I haven't taken it, but generally speaking Talk Python usually has high quality stuff.
Hope this helps!
They are 2nd year students which are mostly fluent in Java..
Diving directly into the code.
Writing Python is very close to writing pseudo code. Google "how to do X" and check the official doc when you need it.