in sparkey/__init__.py [0:0]
def __getitem__(self, key):
"""reader[key] throws KeyError exception when key doesn't exist,
otherwise is equivalent to reader.get(key) (see L{get})
@param key: for the item
**Note** in python 3 this always returns a bytes object, use
getAsString(key) to return a String version.
"""
value = self.get(key)
if value is None:
raise KeyError(key)
return value