Traceback (most recent call last):


 "I:\Python3\lib\shelve.py", line 111, in __getitem__

value = self.cache[key]
KeyError: 'configs'

Traceback (most recent call last):


 "/Users/linwei/anaconda3/envs/tf/lib/python3.6/site-packages/pandas/core/indexes/base.py", line 2522, in get_loc

return self._engine.get_loc(key)


 "pandas/_libs/index.pyx", line 117, in pandas._libs.index.IndexEngine.get_loc


 "pandas/_libs/index.pyx", line 139, in pandas._libs.index.IndexEngine.get_loc


 "pandas/_libs/hashtable_class_helper.pxi", line 1265, in pandas._libs.hashtable.PyObjectHashTable.get_item


 "pandas/_libs/hashtable_class_helper.pxi", line 1273, in pandas._libs.hashtable.PyObjectHashTable.get_item
KeyError: '-'
