Which is the **best Python IDE** for a beginner in **Windows or Linux or both**?

I just started learning Python programming language and curious about using tools that are specifically meant for Python beginners. I also would like to get some suggestion on what are the best tools available out there for learning Python,as I am confused with large options available.

PS: I know C,C++,Java core,Android, HTML & CSS for basic skeleton website, SQL basics

So I need tools than can teach me python overall and specifically for Web Development and Machine Learning.

Thank you in advance !