Message 67306 - Python tracker (original) (raw)

By trying your script on Linux and Windows I notice different behaviors. On Windows handle_expt is always called. On Linux, no matter if using select or poll, handle_accept is called, then an exception is thrown at the time the data is going to be sent:

Traceback (most recent call last): File "index.py", line 34, in test() File "index.py", line 31, in test asyncore.loop(use_poll=1) File "/usr/lib/python2.5/asyncore.py", line 205, in loop poll_fun(timeout, map) File "/usr/lib/python2.5/asyncore.py", line 190, in poll2 readwrite(obj, flags) File "/usr/lib/python2.5/asyncore.py", line 101, in readwrite obj.handle_error() File "/usr/lib/python2.5/asyncore.py", line 93, in readwrite obj.handle_read_event() File "/usr/lib/python2.5/asyncore.py", line 400, in handle_read_event self.handle_connect() File "index.py", line 17, in handle_connect self.send("hello world") File "/usr/lib/python2.5/asyncore.py", line 481, in send self.initiate_send() File "/usr/lib/python2.5/asyncore.py", line 468, in initiate_send num_sent = dispatcher.send(self, self.out_buffer[:512]) File "/usr/lib/python2.5/asyncore.py", line 345, in send result = self.socket.send(data) socket.error: (111, 'Connection refused')

In my opinion both behaviors are wrong since neither handle_expt nor handle_connect should be called in case of a "connection refused" event. Especially handle_connect should not be called at all since no connection takes place. The correct behavior here must be identifying when such event occurs, raise the proper exception (ECONNREFUSED) and let it propagate until handle_error which will take care of it.