This post explains how to write to a file in Python. You'll discover how to create word files (.docx), spreadsheets (.csv), text files, and more!

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.

Python is a general-purpose programming language for Web and desktop development. Python works well on both of these platforms because of its flexibility, facilitated by its extensive list of ...