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How to use object_has_method method in Lemoncheesecake

Best Python code snippet using lemoncheesecake

graphics.py

Source:graphics.py

...197    name = target.__name__198    if name == "__init__" and class_name:199        name = "%s constructor"  % class_name200    return name201def object_has_method(obj, method_name):202    a = getattr(obj, method_name, None)203    return callable(a)204def is_point_like(x):205    return object_has_method(x,"clone") and \206            object_has_method(x,"getX") and \207            object_has_method(x,"getY")208def insist_argument_has_method(arg_index, method_name, expected_type_name, class_name=None):209    def wrap(f):210        def wrap_result(*args, **kwargs):211            if len(args) <= arg_index or not object_has_method(args[arg_index], method_name):212                description = describe_annotated_target(f, class_name)213                raise TypeError(\214                    "When calling %s, argument number %d (counting from zero) should have type %s but instead has type %s." % \215                        (description, arg_index, expected_type_name, type(args[arg_index]).__name__))216            return f(*args, **kwargs)217        wrap_result.__name__ = f.__name__218        return wrap_result219    return wrap220def insist_argument_is_point(arg_index, **kwargs):221    def wrap(f):222        d1 = insist_argument_has_method(arg_index, "clone", "Point", **kwargs)223        d2 = insist_argument_has_method(arg_index, "getX", "Point", **kwargs)224        d3 = insist_argument_has_method(arg_index, "getY", "Point", **kwargs)225        return d1(d2(d3(f)))...

introspection.py

Source:introspection.py

1import inspect2import six3def object_has_method(obj, method_name):4    try:5        return callable(getattr(obj, method_name))6    except AttributeError:7        return False8def get_callable_args(cb):9    if not inspect.isroutine(cb):10        try:11            cb = getattr(cb, "__call__")12        except AttributeError:13            raise ValueError("%s is not something that can be called" % cb)14    spec = inspect.getfullargspec(cb) if six.PY3 else inspect.getargspec(cb)15    args_start = 1 if inspect.ismethod(cb) else 016    return spec.args[args_start:]17# adapted from https://stackoverflow.com/a/3681323...

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