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I have a loop while that ends only when I press the key q, then the program is closed. Within that loop, at a given time or condition, I initiate a thread that takes about a few 10 seconds to run.
My problem is, if I get out of loop squeezing q with a thread running, this is canceled.
I would like the loop/script awaited the execution of the thread, and then finalize the program. This is possible?
Thank you.
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In addition to the mode mentioned by Felipe Avelar using the method Thread.is_alive(), there is also the method Thread.join(). Both can be used together.
When Thread.join() is called, says the thread main to expect a particular thread end, before the thread main proceed and execute the next instruction. Follow an example:
import time, threading
def fun():
for i in range(5):
time.sleep(1)
print(i)
def main():
thread = threading.Thread(target=fun)
thread.start()
thread.join()
# A thread foi finalizada, fazer algo a partir daqui
print("Thread finalizada")
main()
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Dude, could you put in the relevant part of your code? I think it’s kind of abstract with nothing in the code...
– Felipe Avelar
But possibly using a
thread.isAlive()solve your problem...– Felipe Avelar
@Felipeavelar, thanks for the feedback. I can even use the.isAlive() thread to detect if it exists, but how to "wait" for the thread to close? Ah, another thing, I realized that even if I shut down the program and went back to the prompt, the thread keeps running until it’s finished, in a way that’s good, I just wanted it to wait to get back to the prompt.
– Daniel Accorsi
Could put a
while thread.isAlive(): pass. But I can’t say with precision, without seeing the code.– Felipe Avelar