\setindexsubitem{(in module frobnitz)}
These are no longer needed when present before any other \setindexsubitem{}
in the module section. The indexsubitem is now set by \bimodindex and
\stmodindex.
checkin of myformat.sty.
Change "\renewcommand{\indexsubitem}{(...)}" to "\setindexsubitem{(...)}"
everywhere.
Some other minor nits that I happened to come across.
Added a \label{} for the module.
Fixed one minor grammatical nit: use plural pronoun to refer to a pair of
referents.
Include "()" when naming functions in the text.
Fred Drake
Guido van Rossum