bpo-36972: Add SupportsIndex (GH-13448)
In order to support typing checks calling hex(), oct() and bin() on user-defined classes, a SupportIndex protocol is required. The ability to check these at runtime would be good to add for completeness sake. This is pretty much just a copy of SupportsInt with the names tweaked.
diff --git a/Misc/ACKS b/Misc/ACKS
index 6b1fdbc..8f0ecb7 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -355,6 +355,7 @@
Raúl Cumplido
Antonio Cuni
Brian Curtin
+Paul Dagnelie
Lisandro Dalcin
Darren Dale
Andrew Dalke