[Documentation] ExecutorBase.submit() missing 1 required positional argument: 'fn'

[jan-janssen]

When the function is set explicitly in the submit() function executorlib raises and error message:

ExecutorBase.submit() missing 1 required positional argument: 'fn'

For example:

import executorlib

def sum_funct(a,b):
    return sum([a, b])

with executorlib.SingleNodeExecutor() as exe:
    f = exe.submit(fn=sum_funct, a=1, b=2)
    print(f.result())

This behavior is consistent with the concurrent.futures.ThreadPoolExecutor which raises a similar error message:

from concurrent.futures import ThreadPoolExecutor

def sum_funct(a,b):
    return sum([a, b])

with ThreadPoolExecutor() as exe:
    f = exe.submit(fn=sum_funct, a=1, b=2)
    print(f.result())

Raises:

TypeError: ThreadPoolExecutor.submit() missing 1 required positional argument: 'fn'

Still there were older versions of executorlib<=1.0.1 which did not raise this error message.