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How to use create_patch_proxy method in localstack

Best Python code snippet using localstack_python

patch.py

Source:patch.py

...17        if isinstance(cls, type):18            return cls19    # method is a module-level function20    return inspect.getmodule(method)21def create_patch_proxy(target: Callable, new: Callable):22    """23    Creates a proxy that calls `new` but passes as first argument the target.24    """25    @functools.wraps(target)26    def proxy(*args, **kwargs):27        return new(target, *args, **kwargs)28    return proxy29class Patch:30    obj: Any31    name: str32    new: Any33    def __init__(self, obj: Any, name: str, new: Any) -> None:34        super().__init__()35        self.obj = obj36        self.name = name37        self.old = getattr(self.obj, name)38        self.new = new39        self.is_applied = False40    def apply(self):41        setattr(self.obj, self.name, self.new)42        self.is_applied = True43    def undo(self):44        setattr(self.obj, self.name, self.old)45        self.is_applied = False46    def __enter__(self):47        self.apply()48        return self49    def __exit__(self, exc_type, exc_val, exc_tb):50        self.undo()51        return self52    @staticmethod53    def function(target: Callable, fn: Callable, pass_target: bool = True):54        obj = get_defining_object(target)55        name = target.__name__56        is_class_instance = not inspect.isclass(obj) and not inspect.ismodule(obj)57        if is_class_instance:58            # special case: If the defining object is not a class, but a class instance,59            # then we need to bind the patch function to the target object. Also, we need60            # to ensure that the final patched method has the same name as the original61            # method on the defining object (required for restoring objects with patched62            # methods from persistence, to avoid AttributeError).63            fn.__name__ = name64            fn = types.MethodType(fn, obj)65        if pass_target:66            new = create_patch_proxy(target, fn)67        else:68            new = fn69        return Patch(obj, name, new)70class Patches:71    patches: List[Patch]72    def __init__(self, patches: List[Patch] = None) -> None:73        super().__init__()74        self.patches = []75        if patches:76            self.patches.extend(patches)77    def apply(self):78        for p in self.patches:79            p.apply()80    def undo(self):...

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