Method delattr

src/_pytest/monkeypatch.py:250–286

Delete attribute ``name`` from ``target``. If no ``name`` is specified and ``target`` is a string it will be interpreted as a dotted import path with the last part being the attribute name. Raises AttributeError it the attribute does not exist, unless ``rais

(
        self,
        target: object | str,
        name: str | NotSetType = NOTSET,
        raising: bool = True,
    )

        self._setattr.append((target, name, oldval))

    def delattr(
        self,
        target: object | str,
        name: str | NotSetType = NOTSET,
        raising: bool = True,
    ) -> None:
        """Delete attribute ``name`` from ``target``.

        If no ``name`` is specified and ``target`` is a string
        it will be interpreted as a dotted import path with the
        last part being the attribute name.

        Raises AttributeError it the attribute does not exist, unless
        ``raising`` is set to False.
        """
        __tracebackhide__ = True
        import inspect

        if name is NOTSET:
            if not isinstance(target, str):
                raise TypeError(
                    "use delattr(target, name) or "
                    "delattr(target) with target being a dotted "
                    "import string"
                )
            name, target = derive_importpath(target, raising)

        if not hasattr(target, name):
            if raising:
                raise AttributeError(name)
        else:
            oldval = getattr(target, name, NOTSET)
            # Avoid class descriptors like staticmethod/classmethod.
            if inspect.isclass(target):
                oldval = target.__dict__.get(name, NOTSET)
            self._setattr.append((target, name, oldval))
            delattr(target, name)

    def setitem(self, dic: Mapping[K, V], name: K, value: V) -> None:
        """Set dictionary entry ``name`` to value."""