What is, 1: the easiest and 2:the best tools for building Python application GUI?

Question

Easiest to learn and use/implement. Best in term of complete set of tools/libararies etc.

Answer 1

Refer:
https://www.sololearn.com/discuss/363065/?ref=app
https://www.sololearn.com/discuss/339620/?ref=app
https://www.sololearn.com/discuss/311497/?ref=app

Answer 2

Easiest: tkinter (standard library)
Best: ...wait for someone else, I've got more questions to answer 😉