joblib to implement multi-progress

from joblib import Parallel, delayed

def get_pid(p_num):
    import os
    import time
    time.sleep(10)
    return "%d_%d" % (p_num, os.getpid())
# function delayed to warp (proxy) a parallel function
tasks = [delayed(get_pid)(_) for _ in range(100)]

# use 5 progress to run tasks
ret = Parallel(n_jobs=5)(tasks)

print(ret)