Concurrent.futures.ThreadPoolExecutor Doesn't Print Errors

I am trying to use concurrent.futures.ThreadPoolExecutor module to run a class method in parallel, the simplified version of my code is pretty much the following: class TestClass:

Solution 1:

As far as my knowledge goes which is "not so far", you have to call "e.results()" after "executor.submit(testClass.testMethodToExecInParallel)" in order to execute the threadpool . I have tried what you said and it is giving me error, below is the code

>>> import concurrent.futures as cf
>>> executor = cf.ThreadPoolExecutor(1)
>>> def a(x,y):
...     print(x+y)
...
>>> future = executor.submit(a, 2, 35, 45)
>>> future.result()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Users\username 
\AppData\Local\Programs\Python\Python37\lib\concurrent\futures\_base.py", line 
425, in result
    return self.__get_result()
  File "C:\Users\username
\AppData\Local\Programs\Python\Python37\lib\concurrent\futures\_base.py", line 
384, in __get_result
    raise self._exception
  File "C:\Users\username
\AppData\Local\Programs\Python\Python37\lib\concurrent\futures\thread.py", line 
57, in run
    result = self.fn(*self.args, **self.kwargs)
TypeError: a() takes 2 positional arguments but 3 were given

Let me know if it still doesn't work