fixed sequence of parameters in python FunctionDef

defs.tex

@@ -302,7 +302,7 @@
 \newcommand{\CRETURN}[1]{\key{return}~#1}
 \newcommand{\GOTO}[1]{\key{Goto}\LP #1 \RP}
 \newcommand{\CGOTO}[1]{\key{goto}~#1}
-\newcommand{\FUNDEF}[5]{\key{FunctionDef}\LP#1\key{, }#2\key{, }#3\key{, None}\key{, }#5\key{, None}\RP}
+\newcommand{\FUNDEF}[5]{\key{FunctionDef}\LP#1\key{, }#2\key{, }#5\key{, None}\key{, }#3\key{, None}\RP}
 \fi
 
 \newcommand{\SEQ}[2]{\key{(Seq}~#1~#2\key{)}}