获取joblib并行运算中的进度 python 并行计算

joblib那么方便，好用，然而，怎样获取的的当前计算进度呢，以下为pyqt中的解决方式，jupyter请自行查阅tqdm。
===================代码======================

from math import sqrt
from collections import defaultdict
from joblib import Parallel, delayed
mycount = 1
class CallBack(object):
    completed = defaultdict(int)
    def __init__(self,time,index, parallel):
        self.index = index
        self.parallel = parallel
    def __call__(self, index):
        global mycount
        CallBack.completed[self.parallel] += 1
        mycount = CallBack.completed[self.parallel]
        print(f"mycount = {mycount}")
        print("done with {}".format(CallBack.completed[self.parallel]))
        if self.parallel._original_iterator is not None: 
            self.parallel.dispatch_next()
import joblib.parallel
joblib.parallel.BatchCompletionCallBack = CallBack
print(Parallel(n_jobs=2)(delayed(sqrt)(i**2) for i in range(10)))

=======感谢外国友人=======