Hi Dan

I'm a Twisted neophyte, but I've been using Python a long time.

I'm a Twisted neophyte, but I've been using Twisted a long time.

(I'd add a smiley, but that's not a joke.)

My question: Is there a way of producing a deferred graph in a Python program at a given point in time? Perhaps something based on graphviz and objgraph.py? We're able to detect when we're having the problem, we just don't (yet) know its cause.

You might be able to use this that I wrote some time ago. It might need some maintenance as the Twisted Deferred code has moved on since then. But the approach might help you:

http://www.twistedmatrix.com/pipermail/twisted-python/2008-October/018535.ht...

Terry