Multi processes

The example given didn’t run for me. I got this error

Traceback (most recent call last):
File “”, line 1, in
File “/Users/jasmeetkaur/.pyenv/versions/3.10.13/lib/python3.10/multiprocessing/spawn.py”, line 116, in spawn_main
Traceback (most recent call last):
File “”, line 1, in
File “/Users/jasmeetkaur/.pyenv/versions/3.10.13/lib/python3.10/multiprocessing/spawn.py”, line 116, in spawn_main
Traceback (most recent call last):
File “”, line 1, in
File “/Users/jasmeetkaur/.pyenv/versions/3.10.13/lib/python3.10/multiprocessing/spawn.py”, line 116, in spawn_main
exitcode = _main(fd, parent_sentinel)
File “/Users/jasmeetkaur/.pyenv/versions/3.10.13/lib/python3.10/multiprocessing/spawn.py”, line 126, in _main
exitcode = _main(fd, parent_sentinel)
File “/Users/jasmeetkaur/.pyenv/versions/3.10.13/lib/python3.10/multiprocessing/spawn.py”, line 126, in _main
exitcode = _main(fd, parent_sentinel)
File “/Users/jasmeetkaur/.pyenv/versions/3.10.13/lib/python3.10/multiprocessing/spawn.py”, line 126, in _main
self = reduction.pickle.load(from_parent)
self = reduction.pickle.load(from_parent)
AttributeError: Can’t get attribute ‘showSquare’ on <module ‘main’ (built-in)>
AttributeError: Can’t get attribute ‘showSquare’ on <module ‘main’ (built-in)>
self = reduction.pickle.load(from_parent)
AttributeError: Can’t get attribute ‘showSquare’ on <module ‘main’ (built-in)>
Traceback (most recent call last):
File “”, line 1, in
File “/Users/jasmeetkaur/.pyenv/versions/3.10.13/lib/python3.10/multiprocessing/spawn.py”, line 116, in spawn_main
Traceback (most recent call last):
exitcode = _main(fd, parent_sentinel)
File “/Users/jasmeetkaur/.pyenv/versions/3.10.13/lib/python3.10/multiprocessing/spawn.py”, line 126, in _main
File “”, line 1, in
self = reduction.pickle.load(from_parent)
AttributeError: Can’t get attribute ‘showSquare’ on <module ‘main’ (built-in)>
File “/Users/jasmeetkaur/.pyenv/versions/3.10.13/lib/python3.10/multiprocessing/spawn.py”, line 116, in spawn_main
exitcode = _main(fd, parent_sentinel)
File “/Users/jasmeetkaur/.pyenv/versions/3.10.13/lib/python3.10/multiprocessing/spawn.py”, line 126, in _main
self = reduction.pickle.load(from_parent)
AttributeError: Can’t get attribute ‘showSquare’ on <module ‘main’ (built-in)>