Python twisted reactor undefined variable
python, tcpserver, twisted
Solution
This is a known issue related to the way Eclipse/PyDev performs static analysis.
If you look closely, the `reactor` object does not actually exist in the twisted.internet module at import-time. The module is empty.
When Eclipse/PyDev tries to compile the bytecode, static analysis doesn't see the `reactor` object in the twisted.internet module and marks it as an undefined variable, even though it's actually present at runtime (registered through some Twisted magic I can't explain).
The workaround I use is simple, just add #@UndefinedVariable to suppress the error:
reactor.run() #@UndefinedVariable
Voila. No more IDE errors.
Problem
I'm following this tutorial: http://www.raywenderlich.com/3932/how-to-create-a-socket-based-iphone-app-and-server but when I write the ``` reactor.listenTCP(80, factory) ``` eclipse tells me that it's an undefined variable.. I installed twisted and can get autocomplete for the import, but this won't work.. Google showed a few more having this issue but I couldn't find any solution to it.. Thanks! EDIT: The complete code: ``` from twisted.internet.protocol import Factory from twisted.internet import reactor factory = Factory() reactor.listenTCP(80, factory) reactor.run() ```