When writing code, an error is generated indicating that dependent libraries were not found, what should I do about it?

Question

Python

Could not find platform dependent libraries
Consider setting $PYTHONHOME to [: ]
here is the code, could you tell me what the problem is, I rummage around the Internet and don’t find an answer, I only understand that the problem is with some kind of source file. which one is not clear.

Answer 1

https://stackoverflow.com/questions/19292957/how-c...
https://askubuntu.com/questions/905372/could-not-f...
https://stackoverflow.com/questions/38132755/ import...