Accessing POST parameters from BaseHTTPServer

[James]

Hi all,
I'm writing a super simple little debugging HTTP server which simply
returns the path and parameters it receives requests for.

E.g. requesting /meth?a=b returns something like:
Command: GET
Path: /meth
Params: {'a': ['b']}

This is fine for GET, but I can't see how I access parameters passed
by POST requests...

The particular client programme I'm testing will be passing stuff up
as text/xml, if that's any help...

Thanks!
James