CODEWITHSUNDEEP
python
user1648409
user1648409

Reputation:

Python sockets + select

i use this function to run my Server via Sockets:

def run(self):
    # The 'main' function
    print 'Running ... '
    Running = True
    while Running:
        InList,OutList,ExceptList = select.select(self.Connections,[],[])
        for Connection in InList:
            if Connection == self.Server:
                # Server got a new connecting Client
                User, Adress = self.Server.accept() # New User Connection
                Data = {'User':User,'Adress':Adress}
                self.Connections.append(Data) # Store the new User Connection
                print 'User ', Data, ' connected'
            else:
                # Some other Socket got data for the Server
                Data = Connection.recv(1024)
                if not Data:
                    print 'No new Data!'
                    break

                print Data

However when sending data i am getting this Error: TypeError: argument must be an int, or have a fileno() method, on line 23 which is the select() line.

Looking up the manual and those examples (http://code.activestate.com/recipes/531824-chat-server-client-using-selectselect/ and http://ilab.cs.byu.edu/python/select/echoserver.html) i see no difference and dont understand why i wouldn't work. self.Connections contains only the Server socket and when using print self.Connections it gives me:

[<socket._socketobject object at 0x020B6BC8>]

stating, that it's a list i am passing to select() which should be correct.

What am i doing wrong? Thanks!

Upvotes: 0

Views: 223

Answers (1)

Kevin
Kevin

Reputation: 76194

The first time select.select runs, there's no problem, because self.Connections contains only a socket object, which is perfectly valid.

In the second trip through the while loop, however, self.Connections has picked up another element: the Data dictionary constructed in the if Connection == self.Server: block. That dictionary is not an integer, and it doesn't have a fileno method, so select.select complains when it sees it.

Upvotes: 1

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