The generated 'C'-prefixed LaTeX commands to format source code can, in some cases, collide with the commands of other packages. Since the get_style_defs of the HTML formatter lets you supply a style prefix, I figured that would be a sane behavior here, too. I'm uploading a patch to make the 'arg' argument to get_style_defs be used as the LaTeX command prefix, should someone (like me) need to avoid such collisions. Thanks for Pygments!
Reported by Jonathan Daugherty email@example.com