Can multiple copies of one of my programs running in Pycharm write data to the same file?

Question

Python

I run 5 copies of my program through pycharm, they all write data from time to time to the same file.
What could be the threat?

Answer 1

I run 5 copies of my program through pycharm, they all write data from time to time to the same file. What could be the threat?

I don't think that Python's file manipulation mechanisms are any different from those in other languages. Therefore, I can assume that if you do not hang a lock on the file (and do not remove them later) - this can threaten the chaos of this very data in the file, and at most - an error during recording (and that's not a fact).