This post will show you how to open CSV files in Python using the CSV module. You'll also learn another method + how to write CSV files!

The problem I've noticed is that if I append the file with each of the 100k runs (one at a time), it can happen that two threads try to save to the file at the same time and some row(s) end up empty.

To read in a txt file you can use the “open” function. The open function has 3 modes “r, w, a”. The read mode limits you to opening the file and reading what’s inside without being able to change or ...