diff --git a/Python.gitignore b/Python.gitignore
index 4b4a15fb..796f569b 100644
--- a/Python.gitignore
+++ b/Python.gitignore
@@ -111,7 +111,9 @@ ipython_config.py
 #   https://pdm.fming.dev/#use-with-ide
 .pdm.toml
 
-# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+# PEP 582
+#   __pypackages__ is used by e.g. github.com/David-OConnor/pyflow and
+#   github.com/pdm-project/pdm.
 __pypackages__/
 
 # Celery