%%  Change this to say a4paper instead of letterpaper if you want A4.  These%  are the latex defaults.%\newcommand{\py@paper}{letterpaper}\newcommand{\py@ptsize}{10pt} %  These set up the fonts for the documents.%%  The "times" package makes the default font the PostScript Times%  font, which makes for smaller PostScript and a font that more people %  like.%%  The "avant" package causes the AvantGarde font to be used for%  sans-serif text, instead of the uglier Helvetica set up by the "times"%  package.%\RequirePackage{times}\typeout{Using Times instead of Computer Modern.}