[Twisted-Python] license for RetryingCall class posted here in Nov 2009

Hello! A code snippet implementing retrying calls got posted on this list in November of 2009, here's the thread in question: http://twistedmatrix.com/pipermail/twisted-python/2009-November/020818.html I wanted to use that snippet (slightly changed and with unit tests added) in txpostgres, the Postgres driver for Twisted - http://github.com/wulczer/txpostgres/ Now, txpostres is MIT-licensed and before going ahead and incorporating that code, I'd like to make sure its license is compatible, I've taken the liberty of CC'ing Terry but perhaps someone else could also chime in. Thanks, Jan