Function missing a positional argument

Question

I've got the code below that is giving me the following error: bubble_sort() missing 1 required positional argument: 'a_list'. I am passing a list to the function, so I do not know where the error is coming from. I am learning python right now, so understanding what I am doing wrong and the why is important to me.

import functools
import time

def sort_timer(func):
    """
    Timer function that counts how many seconds it takes the decoration function to run, in this case the sort functions
    described above. Returns the number of seconds using the time module.
    :param func:
    :return total_time:
    """

    @functools.wraps(func)
    def wrapper(*args, **kwargs):
        """
        Calculates the total time a function runs.
        :return:
        """

        total_time = None

        start_time = time.perf_counter()
        func(*args, **kwargs)
        end_time = time.perf_counter()

        local_total_time = end_time - start_time

        return total_time

    return wrapper()

@sort_timer
def bubble_sort(a_list):
  """
  Sorts a_list in ascending order
  """
  for pass_num in range(len(a_list) - 1):
    for index in range(len(a_list) - 1 - pass_num):
      if a_list[index] > a_list[index + 1]:
        temp = a_list[index]
        a_list[index] = a_list[index + 1]
        a_list[index + 1] = temp

def main():

    random_list = [5,1,10,15,3,6,45,21,90, 76,44,33,41,27,81]

    print(bubble_sort(random_list))


if __name__ == "__main__":

    main()