Standalone HTTP parser?

[Christopher Stawarz]

Does anyone know of a standalone module for parsing and generating  
HTTP messages?  I'm looking for something that will take a string and  
return a convenient message object, and vice versa.  All the Python  
HTTP parsing code I've seen is either intimately bound to the  
corresponding socket I/O operations (e.g. httplib, httplib2,  
BaseHTTPServer) and/or buried in somebody's framework (e.g. Twisted).

I want to write some HTTP servers/clients that do asynchronous I/O  
using my own engine (multitask), so I need a HTTP package that won't  
insist on doing the I/O for me.


Thanks,
Chris Stawarz