# HG changeset patch
# User Gregory Szorc <gregory.szorc@gmail.com>
# Date 1479787971 28800
# Node ID d1b97fc87f551ac0b4359015bf57f9cfabca5c35
# Parent  8491845a75b250347f796f3dd966a8707c8d72b2
httppeer: document why super() isn't used

Adding a follow-up to document lack of super() per Augie's
request.

diff -r 8491845a75b2 -r d1b97fc87f55 mercurial/httppeer.py
--- a/mercurial/httppeer.py	Thu Nov 17 00:59:41 2016 -0800
+++ b/mercurial/httppeer.py	Mon Nov 21 20:12:51 2016 -0800
@@ -39,6 +39,9 @@
 
     # We need to wrap reader.read() so HTTPException on subsequent
     # reads is also converted.
+    # Ideally we'd use super() here. However, if ``reader`` isn't a new-style
+    # class, this can raise:
+    # TypeError: super() argument 1 must be type, not classobj
     origread = reader.read
     class readerproxy(reader.__class__):
         def read(self, *args, **kwargs):