VSCode: Setting line lengths in the Black Python code formatter

adamlombard profile image Adam Lombard ・1 min read

The docs for the Black Python code formatter say that the formatter "is not configurable". This is largely true, but if you have Black set up to work in VSCode, you can configure the line length.

In VSCode, go 'Code -> Preferences -> Settings' and search for "python formatting black args".

Add two separate arguments, in this order: --line-length and n, where "n" is your desired number of allowed characters per line:

Interface for adding Black formatting arguments in VSCode

A few notes about line lengths in Python:

Posted on by:


markdown guide

Definitely going to reference this very time I start a new project -- right after I re-learn that setting max line length in .pylintrc is not a substitute for the setting Adam's proposed here. Thanks Adam!


You're welcome, Jordan! 🙂


119 seems uncomfortable! Then again I have never done Django and might be missing some context here.

I generally stick to black defaults and change my flake8 config to match.