Re: [Python-ideas] recorarray: a mutable alternative to namedtuple

On Sat, Mar 28, 2015 at 12:09 PM, Andrew Barnert abarnert@yahoo.com.dmarc.invalid wrote:

class Person
    def __init__(self, name: str, age: int):
        self.name = name
        self.age = age

Of course it's trivial to wrap up that boilerplate if you're going to create 20 of these.

Here's a crazy thought: you could use functools.wraps() to abuse **kwargs.

def make_attributes(func): @functools.wraps(func) def inner(self, **args): self.__dict__.update(args) inner(self, **args) return inner

class Person: @make_attributes def __init__(self, *, name: str, age: int): pass

Thanks to wraps(), you still have your parameter names for introspection and help() and so on. Thanks to **args, you can do bulk operations on all the args.

It's a bit naughty (and it does preclude positional args, though a little bit more work in the decorator could support that too), but it would work.....

ChrisA