Yes it works !!
While looking for a way to have some better URL in Webware, than the defaut http://host/Servlet?arg0=..&arg1=, Ian tell me to look at WebKit.URLParser. After a little time looking at the source i managed to do this without too much pain. As i can’t find example on the web, I put this here, if Ian is ok, i will perhaps post this on the wiki.

# put this in your context __init__.py file

class CustomParser(URLParser.URLParser):
"""
Class to do the dispatch of Request it should return a servlet instance
if we return nothing the default Webware behaviour is used
"""

def parse(self,trans,requestPath):
values=string.split(requestPath,'/')

if values[-2] == 'Article':
restPart = '/'
name = 'blog/Article.py'

req = trans.request()
req.setField('id',values[-1])

req._extraURLPath = restPart
req._serverSidePath = name
return URLParser.ServletFactoryManager.servletForFile(trans, name)

# we use the default url handling
return None

urlParser=CustomParser()

So now url like http://alias.larsen-b.com/Article/1 will map to the servlet Article.py and argument id=1 (http://alias.larsen-b.com/Article?id=1).
Of course this is a really simple example, but you can do things really more funny.