How to solve problem in Python with UTF-8?

Question

Python

Good day of the day. I searched the internet and did not find the answer.
What's the problem, well, I played with the visual, it seems to have nothing to do with Python.
Well, then I put the python in the visual and I tried it and noticed that it does not display the Cyrillic alphabet.
Shows that there is a problem with UTF-8.
I went to another Eclipse environment again, the same problem (although everything worked before).
Found the line: # -*- coding: cp1251 -*-
If you write it at the beginning, it works. Honestly xs why.
I would like to know why it could break, and how to fix it so as not to write this line every time.

Answer 1

Resave the files in utf
Change the line to# coding: utf-8