Method get_extension_for_class

src/cryptography/x509/extensions.py:125–141

(
        self, extclass: type[ExtensionTypeVar]
    )

        raise ExtensionNotFound(f"No {oid} extension was found", oid)

    def get_extension_for_class(
        self, extclass: type[ExtensionTypeVar]
    ) -> Extension[ExtensionTypeVar]:
        if extclass is UnrecognizedExtension:
            raise TypeError(
                "UnrecognizedExtension can't be used with "
                "get_extension_for_class because more than one instance of the"
                " class may be present."
            )

        for ext in self:
            if isinstance(ext.value, extclass):
                return ext

        raise ExtensionNotFound(
            f"No {extclass} extension was found", extclass.oid
        )

    __len__, __iter__, __getitem__ = _make_sequence_methods("_extensions")