0
に失敗:なぜループの並列は、私がループの並列のために何をしたいのpython
def multiple(a, b):
return a * b
Parallel(n_jobs=2)(delayed(multiple)(a=i, b=j) for i in range(1, 6) for j in range(11, 16))
しかし、それは私にエラーメッセージを与える:コードと間違っている何
Traceback (most recent call last):
File "<input>", line 1, in <module>
File "/Users/tiantian/Library/Python/2.7/lib/python/site-packages/joblib/parallel.py", line 758, in __call__
while self.dispatch_one_batch(iterator):
File "/Users/tiantian/Library/Python/2.7/lib/python/site-packages/joblib/parallel.py", line 603, in dispatch_one_batch
tasks = BatchedCalls(itertools.islice(iterator, batch_size))
File "/Users/tiantian/Library/Python/2.7/lib/python/site-packages/joblib/parallel.py", line 127, in __init__
self.items = list(iterator_slice)
File "<input>", line 1, in <genexpr>
File "/Users/tiantian/Library/Python/2.7/lib/python/site-packages/joblib/parallel.py", line 183, in delayed
pickle.dumps(function)
TypeError: expected string or Unicode object, NoneType found
を?