def __getattr__(self, attr):
"""When attribute is not found in the class, Python looks for this
special method, so "self.inexistent" will get here and so we can
forward it to the __getitem__ self['inexistent'] and then the
defaultdict can return a new empty node, but if it starts with _ it is
treated as a normal attribute like _strategy, _store, _value
"""
if not attr.startswith('_'):
return self[attr]
return defaultdict.__getattribute__(self, attr)
def __getattribute__(self, item): # noqa
"""This method is called for every dotted access
so we can control special names like the ones in the list below:
copy,update,values,clear,get,items
that names are reserved because can be a locator name and also a
method of this object"""
reserved_names = ('copy', 'update', 'values', 'clear', 'get', 'items')
if item in reserved_names and item in self:
return self.__getitem__(item)
return defaultdict.__getattribute__(self, item)
