grass.pygrass.modules.interface.typedict — GRASS Python Library documentation

# Source code for grass.pygrass.modules.interface.typedict

    """
    Created on Tue Apr  2 18:37:02 2013

    @author: pietro
    """

    from collections import OrderedDict
    from copy import deepcopy

    from grass.pygrass.modules.interface.docstring import docstring_property

    class TypeDict(OrderedDict):
        def __init__(self, dict_type, *args, **kargs):
            self._type = dict_type
            super().__init__(*args, **kargs)

        def __getattr__(self, key):
            if key in self:
                return self[key].value
            return OrderedDict.__getattr__(self, key)

        def __setattr__(self, key, value):
            if key in self:
                self[key].value = value
            else:
                OrderedDict.__setattr__(self, key, value)

        def __dir__(self):
            return self.keys()

        def __setitem__(self, key, value):
            if isinstance(value, self._type):
                super().__setitem__(key, value)
            else:
                str_err = "The value: %r is not a %s instance."
                raise TypeError(str_err % (value, self._type.__name__))

        @docstring_property(__doc__)
        def __doc__(self):
            return "\n".join([self.__getitem__(obj).__doc__ for obj in self.__iter__()])

        def __call__(self):
            return [self.__getitem__(obj) for obj in self.__iter__()]

        def __deepcopy__(self, memo):
            obj = TypeDict(self._type)
            for k, v in self.items():
                obj[k] = deepcopy(v)
            return obj

        def __reduce__(self):
            inst_dict = vars(self).copy()
            for k in vars(TypeDict(self._type)):
                inst_dict.pop(k, None)
            return (
                self.__class__,
                (self._type,),
                inst_dict or None,
                None,
                iter(self.items()),
            )

        def used(self):
            key_dict = {}
            for key in self:
                if self.__getattr__(key):
                    key_dict[key] = self.__getattr__(key)
            return key_dict

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