Andrew nailed it -- there are two asyncore libraries on Vineet's computer. Look
carefully at these two segements of Vineet's trace: you can see the tail of the
filenames.

Here's where the http_server is added to the socket map of medusa.asyncore:

> es\medusa\asyncore.py:250 >>>           self.socket.setblocking(0)
> es\medusa\asyncore.py:251 >>>           self._fileno = self.socket.fileno()
> es\medusa\asyncore.py:252 >>>           self.add_channel()

And here's the loop() call, in python23/lib/asyncore.

> ----------------------------------------------------------------------
> starting loop
> hon23\lib\asyncore.py:180 >>> def loop(timeout=30.0, use_poll=0, map=None):
> hon23\lib\asyncore.py:181 >>>     if map is None:
> hon23\lib\asyncore.py:182 >>>         map = socket_map
> hon23\lib\asyncore.py:184 >>>     if use_poll:
> hon23\lib\asyncore.py:190 >>>         poll_fun = poll
> hon23\lib\asyncore.py:192 >>>     while map:
> hon23\lib\asyncore.py:192 >>>     while map:
> ----------------------------------------------------------------------
> stopping loop


Advice: delete medusa\asyncore.py, so that you're only dealing with the
standard-library installation; and all will be well.

-- Graham