python - multiprocessing: TypeError: 'int' object is not iterable -

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i'm using multiprocessing module in python 3 reason, keeps throwing typeerror: 'int' object not iterable when run program. did:

def main(i):     global urldepth     global row     global counter     urldepth = []     row = 0     counter = 0     login(i)     crawler(menu_url)   if __name__ == '__main__':     workers = 2     processes = []     p_number in range(workers):         p = process(target=main, args=p_number)         p.start()         processes.append(p)      p in processes:         p.join()

i don't understand why happening, me this?

not duplicate of typeerror: 'int' object not iterable because same error, yes, it's of different cause, please read question/code before trying mark question duplicate.

p = process(target=main, args=p_number)

iirc, args needs tuple, you're giving integer. try:

p = process(target=main, args=(p_number,))

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