Fix the \kbd definition so it didn't leave the courier face on.

Doc/texinputs/python.sty

@@ -502,7 +502,7 @@
 \texttt{#1}}}
 
 \newcommand{\bfcode}[1]{\code{\bfseries#1}} % bold-faced code font
-\newcommand{\kbd}[1]{\tt #1}
+\newcommand{\kbd}[1]{\code{#1}}
 \newcommand{\samp}[1]{`\code{#1}'}
 % This weird definition of \var{} allows it to always appear in roman
 % italics, and won't get funky in code fragments when we play around