From 196b1f349eb2baa9bbbc483226874cc01fb7567d Mon Sep 17 00:00:00 2001
From: =?utf8?q?Edouard=20Choini=C3=A8re?=
 <27212526+echoix@users.noreply.github.com>
Date: Tue, 24 Jan 2023 08:43:24 -0500
Subject: [PATCH] Fix `black --help` output for `--python-cell-magics` option
 to be reproducible (#3516)

---
 CHANGES.md            | 2 ++
 src/black/__init__.py | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/CHANGES.md b/CHANGES.md
index e311c49..2acb31d 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -69,6 +69,8 @@
 
 <!-- Changes to Black's terminal output and error messages -->
 
+- Calling `black --help` multiple times will return the same help contents each time
+  (#3516)
 - Verbose logging now shows the values of `pyproject.toml` configuration variables
   (#3392)
 - Fix false symlink detection messages in verbose output due to using an incorrect
diff --git a/src/black/__init__.py b/src/black/__init__.py
index daf6f88..f24487f 100644
--- a/src/black/__init__.py
+++ b/src/black/__init__.py
@@ -244,7 +244,7 @@ def validate_regex(
     multiple=True,
     help=(
         "When processing Jupyter Notebooks, add the given magic to the list"
-        f" of known python-magics ({', '.join(PYTHON_CELL_MAGICS)})."
+        f" of known python-magics ({', '.join(sorted(PYTHON_CELL_MAGICS))})."
         " Useful for formatting cells with custom python magics."
     ),
     default=[],
-- 
2.39.2