Traceback (most recent call last):


 "__main__.py", line 555, in <module>


 "__main__.py", line 120, in bootstrap


 "__main__.py", line 144, in chainload


 "__main__.py", line 551, in _chainload


 "myapp.pyw", line 26, in <module>


 "zipextimporter.pyc", line 82, in load_module


 "rdflib\__init__.pyc", line 78, in <module>
AttributeError: 'Blackhole' object has no attribute 'isatty'

Traceback (most recent call last):


 "/home/john/anaconda3/envs/th/lib/python3.5/multiprocessing/process.py", line 249, in _bootstrap

self.run()


 "/home/john/anaconda3/envs/th/lib/python3.5/multiprocessing/process.py", line 93, in run

self._target(*self._args, **self._kwargs)


 "/home/john/dev/pytorch-a3c/train.py", line 24, in train

shared_param.grad.data = param.grad.data
AttributeError: 'NoneType' object has no attribute 'data'
