How to work with modules in python?

Question

Python

I want to split the cycle into two components and place the second part in another file. How to implement? Does the second part also need to be wrapped in a while loop?
As for example, if there are 3 or more files to which you need to connect the same library for work, is it possible to connect the library once so that it is visible in all files?
1 file

if __name__ == "main":
  main()

2 file

while True:
print('1')
print('2')

Answer 1

Put pygame aside
Start learning from the basics with any book or https://learnpythonthehardway.org/book/ex0.html

Answer 2

Video tutorials on Python 3 to help , you should not start writing in the language without learning!