Update URLs in comments and metadata to use HTTPS (GH-27458) (GH-27478)

(cherry picked from commit be42c06bb01206209430f3ac08b72643dc7cad1c)

Co-authored-by: Noah Kantrowitz <noah@coderanger.net>
diff --git a/Lib/idlelib/macosx.py b/Lib/idlelib/macosx.py
index eeaab59..470de5d 100644
--- a/Lib/idlelib/macosx.py
+++ b/Lib/idlelib/macosx.py
@@ -83,7 +83,7 @@ def tkVersionWarning(root):
             return False
         return ("WARNING: The version of Tcl/Tk ({0}) in use may"
                 " be unstable.\n"
-                "Visit http://www.python.org/download/mac/tcltk/"
+                "Visit https://www.python.org/download/mac/tcltk/"
                 " for current information.".format(patchlevel))
     else:
         return False