SF patch #1077353: add key= argument to min and max
(First draft of patch contributed by Steven Bethard.)
diff --git a/Doc/lib/libfuncs.tex b/Doc/lib/libfuncs.tex
index 2099f3f..904b4e1 100644
--- a/Doc/lib/libfuncs.tex
+++ b/Doc/lib/libfuncs.tex
@@ -642,16 +642,28 @@
of sequence; the result is always a list.
\end{funcdesc}
-\begin{funcdesc}{max}{s\optional{, args...}}
+\begin{funcdesc}{max}{s\optional{, args...}\optional{key}}
With a single argument \var{s}, return the largest item of a
non-empty sequence (such as a string, tuple or list). With more
than one argument, return the largest of the arguments.
+
+ The optional \var{key} argument specifies a one argument ordering
+ function like that used for \method{list.sort()}. The \var{key}
+ argument, if supplied, must be in keyword form (for example,
+ \samp{max(a,b,c,key=func)}).
+ \versionchanged[Added support for the optional \var{key} argument]{2.5}
\end{funcdesc}
\begin{funcdesc}{min}{s\optional{, args...}}
With a single argument \var{s}, return the smallest item of a
non-empty sequence (such as a string, tuple or list). With more
than one argument, return the smallest of the arguments.
+
+ The optional \var{key} argument specifies a one argument ordering
+ function like that used for \method{list.sort()}. The \var{key}
+ argument, if supplied, must be in keyword form (for example,
+ \samp{min(a,b,c,key=func)}).
+ \versionchanged[Added support for the optional \var{key} argument]{2.5}
\end{funcdesc}
\begin{funcdesc}{object}{}