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Author peter.otten
Recipients Adria Garriga, peter.otten
Date 2016-07-08.16:24:28
SpamBayes Score -1.0
Marked as misclassified Yes
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Your code relies on the assumption that when the lambda is invoked the global t is still bound to the Thread instance you are starting. It seems that this is not always the case, and I don't see why it should be guaranteed either.
I don't know whether it's a good idea to store per-thread data in the Thread instance (have a look at threading.local()), but

def start_thread():
    t = Thread(target=lambda: f(t))
    t.obj = [0]

for _ in range(n_threads):

will at least avoid the global.
Date User Action Args
2016-07-08 16:24:28peter.ottensetrecipients: + peter.otten, Adria Garriga
2016-07-08 16:24:28peter.ottensetmessageid: <>
2016-07-08 16:24:28peter.ottenlinkissue27468 messages
2016-07-08 16:24:28peter.ottencreate