1

I have the following code:

def distributeMembersFile(members):
    for node in members:
        node = node.strip() # Strip trailing \n
        if node == socket.hostname(): # No need to send the file to itself
            continue
        conn = None
        try:
            s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)  
            s.connect((node, port))
            # TODO: Can possibly update the list of members here as well
            s.sendall('DWLD')
            s.recv(4)
        except socket.error, msg:
            logging.info(msg)
        finally:
            if s:
                s.close()

Now, my question is that even though s.connect() is in a try except socket.error block, that exception is not being caught. I see the following traceback on console:

    s.connect((node, port))
  File "<string>", line 1, in connect
error: (111, 'Connection refused')

Interestingly, in other places I have the same try except socket.error block, and this particular (Connection refused) error is caught as:

INFO (111, 'Connection refused')

Above was printed by the logging.info function in except block. The only way I see right now to catch this exception is to use a 'bare' except, which is not considered a very good thing. Also, I found it peculiar that the error on the console is not being presented as

socket.error: (111, 'Connection refused')

Instead, it just says 

error: (111. 'Connection refused')

missing the leading word 'socket'. What could be the reason behing the exception not being caught?

4

0 回答 0