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.

The newly approved Python Enhancement Proposal 751 gives Python a standard lock file format for specifying the dependencies of projects. Here’s the what, why, and when.

So I have a program in Python for use on a Linux machine that's dealing with binary data flowing through what may be a Linux FIFO.I'm using Avinash Kak's BitVector to modify the data as it goes ...

Human readability of the file format enables contents of the file to be audited, ... Python 3.14's new template string feature. Jun 6, 2025 5 mins. Python. Sponsored Links.