bpo-45059: Fix IDLE test typo: using "==" instead of "=" (GH-28086)

diff --git a/Lib/idlelib/idle_test/test_macosx.py b/Lib/idlelib/idle_test/test_macosx.py
index b6bd922e4b99dd47356227c9e9382ac6ecfc974a..1932477358689639281f1866b78713e30d75942e 100644 (file)
--- a/Lib/idlelib/idle_test/test_macosx.py
+++ b/Lib/idlelib/idle_test/test_macosx.py
@@ -34,7 +34,7 @@ class InitTktypeTest(unittest.TestCase):
         for platform, types in ('darwin', alltypes), ('other', nontypes):
             with self.subTest(platform=platform):
                 macosx.platform = platform
-                macosx._tk_type == None
+                macosx._tk_type = None
                 macosx._init_tk_type()
                 self.assertIn(macosx._tk_type, types)