Traceback (most recent call last):


 "/usr/local/lib/python3.6/dist-packages/jwt/algorithms.py", line 242, in prepare_key

key = load_pem_private_key(key, password=None)


 "/usr/local/lib/python3.6/dist-packages/cryptography/hazmat/primitives/serialization/base.py", line 18, in load_pem_private_key

return backend.load_pem_private_key(data, password)


 "/usr/local/lib/python3.6/dist-packages/cryptography/hazmat/backends/openssl/backend.py", line 1248, in load_pem_private_key

password,


 "/usr/local/lib/python3.6/dist-packages/cryptography/hazmat/backends/openssl/backend.py", line 1475, in _load_key

self._handle_key_loading_error()


 "/usr/local/lib/python3.6/dist-packages/cryptography/hazmat/backends/openssl/backend.py", line 1518, in _handle_key_loading_error

"Could not deserialize key data. The data may be in an "
ValueError: Could not deserialize key data. The data may be in an incorrect format or it may be encrypted with an unsupported algorithm.

Traceback (most recent call last):



 "train.py", line 114, in <module>


train()



 "train.py", line 110, in train


num_passes=args.num_passes)



 "/data0/home/jy/python_installed/lib/python2.7/site-packages/paddle/v2/trainer.py", line 206, in train


gm=self.__gradient_machine__))



 "train.py", line 92, in __event_handler__


feeding=reader.feeding_index)



 "/data0/home/jy/python_installed/lib/python2.7/site-packages/paddle/v2/trainer.py", line 247, in test


evaluator=evaluator, cost=total_cost / num_samples)

ZeroDivisionError: float division by zero

