'PicklingError attribute lookup do_something on __main__ failed
How to fix the below PicklingError? I have the same code as belowed youtube link: https://youtu.be/fKl2JW_qrso?t=1064 However, I have come up this error while running.
import concurrent.futures
import time
############## multiprocessing ##############
start = time.time()
def do_something(seconds):
print(f'sleeping {seconds} second(s)...')
time.sleep(seconds)
return 'Done Sleeping...'
with concurrent.futures.ProcessPoolExecutor() as executor:
f1 = executor.submit(do_something, 1)
print(f1.result())
finish = time.time()
print(f'Finished in {round(finish - start, 2)} seconds')
runfile('/Trading/test2.py', wdir='/Trading')
PyDev console: using IPython 7.31.0
Python 3.8.12 (default, Jan 5 2022, 12:00:26)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-44)] on linux
concurrent.futures.process._RemoteTraceback:
"""
Traceback (most recent call last):
File "/usr/local/lib/python3.8/multiprocessing/queues.py", line 239, in _feed
obj = _ForkingPickler.dumps(obj)
File "/usr/local/lib/python3.8/multiprocessing/reduction.py", line 51, in dumps
cls(buf, protocol).dump(obj)
_pickle.PicklingError: Can't pickle <function do_something at 0x7f884a1f5160>: attribute lookup do_something on __main__ failed
Sources
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Source: Stack Overflow
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