Question

Please see the example output at:
connection refused

The question I have is why the first call to s.connect() throws “Connection Refused”, but the second call throws “Invalid Argument”. It’s like the first call put the socket object s into some kind of error state. Is there a way to reset it?

Thanks

Answer 1

You are calling this:

s.connect((gethostname(), 4444))

gethostname() involves more than just connecting to server. It initializes the variables for the socket.

Next time you call connect, s already have a value, but invalid. So, you get Invalid argument.

Note: s.connect() actually calls connect() with s as the first argument, as connect is defines as def connect(self, ...).