Have a look at http://pdfcrowd.com - it is a service providing an html to pdf online API and it has bindings for python. It is in private beta now, so if you are interested please just contact me and I will send you an invitation key.
Hmm, looks good. Cannot find your email in your profile, can you kindly let me know your email? Or can you email me at rolf.oltmans@gmail.com. Thank you.