bpo-35516: platform.system_alias() don't replace Darwin (GH-11207)

vstinner · web-flow · commit 60875db2f678 · 2018-12-18T19:51:35.000+01:00
Add a comment explaining why system_alias() doesn't alias Darwin to
macOS.
diff --git a/Lib/platform.py b/Lib/platform.py
@@ -514,6 +514,9 @@ def system_alias(system, release, version):
         # In case one of the other tricks
         system = 'Windows'
 
+    # bpo-35516: Don't replace Darwin with macOS since input release and
+    # version arguments can be different than the currently running version.
+
     return system, release, version
 
 ### Various internal helpers
