Pylacewing - global variables

[izac]

Hi,

This is a test server that I am messing around on, and it seems declaring variables that are global isn't straight forward, see here:

from twisted.internet import reactor

from lacewing.server import ServerProtocol, ServerFactory, ServerDatagram

class MyProtocol(ServerProtocol):
clients = 0

def connectionAccepted(self, kthxbye):
clients += 1
print str(clients)

class MyFactory(ServerFactory):
protocol = MyProtocol

newFactory = MyFactory()
reactor.listenTCP(6120, newFactory)
reactor.listenUDP(6120, ServerDatagram(newFactory))
print "Running"
reactor.run()

All I want it to do is add 1 to clients and then print everytime someone connects, but it always returns the error: local variable 'clients' referenced before assignment

How can I make the variable global and accessible all over the application?

Regards

[Dynasoft]

I think you need to put "self.clients" in order to get the class variable. Just "clients" could be trying to get a (currently non-existent) function-local variable.

[izac]

- but that would mean the variable clients would be assigned to each client that joins, I want the clients variable to just be one.

If it helps, the aim of the server code in my first post it to count howm any clients have joined in total.

[izac]

Aha! Mathias fixed it for me!

from twisted.internet import reactor

from lacewing.server import ServerProtocol, ServerFactory, ServerDatagram

class MyProtocol(ServerProtocol):

  def connectionAccepted(self, kthxbye):
    self.factory.clients += 1
    print str(self.factory.clients)

class MyFactory(ServerFactory):
  protocol = MyProtocol
  clients = 0
  
newFactory = MyFactory()
reactor.listenTCP(6120, newFactory)
reactor.listenUDP(6120, ServerDatagram(newFactory))
print "Running"
reactor.run()

[LB]

def connectionAccepted(self, kthxbye):

Haha! Who thought of that?

[Mathias]

Well, the proper method definition can be found here:

http://aq.darkkiller.dk/lacewing/python/docs/lacewing.server.ServerProtocol-class.html#connectionAccepted

Cough.