Black Playground

Version

Line Length

The recommended line length in Black is 88 characters

Target versionsPython 3.3Python 3.4Python 3.5Python 3.6Python 3.7Python 3.8Python 3.9Python 3.10Python 3.11Python 3.12Python 3.13

Other optionsSkip temporary sanity checks.Skip the first line of the source code.Don't normalize string quotes or prefixes.Don't use trailing commas as a reason to split lines.Format typing stubsEnable potentially disruptive style changes that may be added to Black's main functionality in the next major release.Enable unstable style.

Black @2c135e - The uncompromising Python code formatter.