From f4c982bd510d35069c34e3c80ab2f92d6ab01d1a Mon Sep 17 00:00:00 2001
From: Jelle Zijlstra <jelle.zijlstra@gmail.com>
Date: Sat, 23 Apr 2022 09:20:08 -0700
Subject: [PATCH] Experiment: remove bytearray -> bytes promotion

Help gauge the impact of #12657
---
 mypy/semanal_classprop.py | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/mypy/semanal_classprop.py b/mypy/semanal_classprop.py
index 4be57b64342e..23901825b8fe 100644
--- a/mypy/semanal_classprop.py
+++ b/mypy/semanal_classprop.py
@@ -28,10 +28,6 @@
 # as some functions only accept bytes objects. Here convenience
 # trumps safety.
 TYPE_PROMOTIONS_PYTHON3: Final = TYPE_PROMOTIONS.copy()
-TYPE_PROMOTIONS_PYTHON3.update({
-    'builtins.bytearray': 'bytes',
-    'builtins.memoryview': 'bytes',
-})
 
 # Hard coded type promotions for Python 2.
 #
@@ -41,8 +37,6 @@
 TYPE_PROMOTIONS_PYTHON2: Final = TYPE_PROMOTIONS.copy()
 TYPE_PROMOTIONS_PYTHON2.update({
     'builtins.str': 'unicode',
-    'builtins.bytearray': 'str',
-    'builtins.memoryview': 'str',
 })