Dynamically created method and decorator, got error 'functools.partial' object has no attribute '__module__'

Question

I am currently using EndpointsModel to create a RESTful API for all my models on AppEngine. Since it is RESTful, these api have a lot of repeat code which I want to avoid.

Answer 1

In our case I solved this by subclassing functools.partial:

class WrappablePartial(functools.partial):

    @property
    def __module__(self):
        return self.func.__module__

    @property
    def __name__(self):
        return "functools.partial({}, *{}, **{})".format(
            self.func.__name__,
            self.args,
            self.keywords
        )

    @property
    def __doc__(self):
        return self.func.__doc__

NB you could also make use of __getattr__ to redirect queries, but I figured that was actually less readable (and makes it more difficult to insert any useful meta-data as with __name__)