How to write full chat server / client using python 2.5 [closed]

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I want to write server/client chat protocol using python-2.5 . I want to make protocol similar to yahoo messenger or google-talk. Please suggest me how to start.

Thanks Reetesh Nigam

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You should look at Twisted Words. Twisted is a Python networking library, and Words is a chat component for it. It has support for XMPP/Jabber, the protocol used by Google Talk.

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I would suggest xmppy, though I'm sure Twisted Words (recommended by another answer) and jabber.py, python-xmpp, and no doubt many others, are also usable. Why not try them out a few of them and pick the one that best suits you?

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There are several popular Python libraries for working with XMPP, a/k/a the Jabber protocol, which Google Talk uses. Here is a review that will point you to 3 of them.