SF bug #805304: super instances don't support item assignment
Document a nuance of super(). It is designed to work well with dotted
attribute lookup but not with equivalent implicit lookups using operators
or statements.
diff --git a/Doc/lib/libfuncs.tex b/Doc/lib/libfuncs.tex
index 6d41e1d..1130eb1 100644
--- a/Doc/lib/libfuncs.tex
+++ b/Doc/lib/libfuncs.tex
@@ -996,6 +996,12 @@
def meth(self, arg):
super(C, self).meth(arg)
\end{verbatim}
+
+ Note that \function{super} is implemented as part of the binding process for
+ explicit dotted attribute lookups such as
+ \samp{super(C, self).__getitem__(name)}. Accordingly, \function{super} is
+ undefined for implicit lookups using statements or operators such as
+ \samp{super(C, self)[name]}.
\versionadded{2.2}
\end{funcdesc}