Do I have to install python on my computer before learning or I can use sublime text?

Answer 1

If you are beginner, I would recommend you to install python in computer and work on its default IDE because its pretty simple and enough for a school or college student. Other IDEs are not actually required as they are complex looking heavy to machine. I hope you understood me.

Answer 2

It is possible to run a Python IDE online in your browser. What I do is Google "Python Online" and choose the "repl.it" result that comes up (My personal choice because I like the editor's style). From there, you can create Python file(s) and run them all inside your browser.