hey, everyone, I’m new to ai and i have some problems understanding the codes in optional labs.
is there any course that can help me learn python programing for ML applications?

The courses assume you already have some fundamental programming skills. You might need to take a Python tutorial. There are a lot available on YouTube.

but if you know any specific course that can help me improve my programming skills, I’ll be happy if you let me know.

Here’s a thread which has links to some online courses. But the approach you take depends on how much other programming experience you have. If you have significant experience in another language like JavaScript, C# or C++, then you can probably just spend some time on the website and look at their tutorials. But if this is literally your first exposure to any kind of programming, then the recommendation is to take an actual course.