Python: Launch in paralell diferent functions

paralell.py

from multiprocessing import Process
from tqdm import tqdm
from functools import partial
import time


def runInParallel(*fns):
    """
    Handle processs in paralell
    """
    proc = []
    N = -1
    for fn in fns:
        p = Process(target=fn)
        p.start()
        print(f"Start with args {fn.args}")
        proc.append(p)
        N += 1
    for p, _ in zip(proc, tqdm(range(N))):
        p.join()


def my_simulation(x, a):
    """One simulation"""
    time.sleep(x ** a)
    print(f"I slept for {x**a} seconds")


def process_case(cases=[2, 3, 4]):
    fns = []
    for case in cases:
        fns.append(partial(my_simulation, 2, case))

    runInParallel(*fns)


if __name__ == "__main__":
    process_case([1, 2, 3])