Traceback (most recent call last):


 "/data/db1/anaconda3/lib/python3.6/site-packages/distributed/utils.py", line 229, in f

result[0] = yield make_coro()


 "/data/db1/anaconda3/lib/python3.6/site-packages/tornado/gen.py", line 1055, in run

value = future.result()


 "/data/db1/anaconda3/lib/python3.6/site-packages/tornado/concurrent.py", line 238, in result

raise_exc_info(self._exc_info)


 "<string>", line 4, in raise_exc_info


 "/data/db1/anaconda3/lib/python3.6/site-packages/tornado/gen.py", line 1063, in run

yielded = self.gen.throw(*exc_info)


 "/data/db1/anaconda3/lib/python3.6/site-packages/distributed/client.py", line 1246, in _gather

traceback)


 "/data/db1/anaconda3/lib/python3.6/site-packages/six.py", line 685, in reraise

raise value.with_traceback(tb)


 "/opt/anaconda3/lib/python3.6/site-packages/distributed/protocol/pickle.py", line 59, in loads


 "/opt/anaconda3/lib/python3.6/site-packages/cloudpickle/cloudpickle.py", line 800, in _make_skel_func


 "/opt/anaconda3/lib/python3.6/site-packages/cloudpickle/cloudpickle.py", line 792, in _reconstruct_closure
TypeError: 'int' object is not iterable

Traceback (most recent call last):


 "/usr/lib64/python2.7/multiprocessing/queues.py", line 266, in _feed

send(obj)
TypeError: expected string or Unicode object, NoneType found
