Re: default argument in method

I agree with you Steven that the OP should avoid __getattribute__ and the like for many a thing. I also agree with your last statement. I try to answer the OP's question without much "You shouldn't do this's and don't do that's". I trust them to make thier own decisions. I'd say "A much better solu

Re: default argument in method

On Thu, 30 Dec 2010 11:26:50 -0800, DevPlayer wrote: > There's some_object.some_method.func_defaults Not quite -- method objects don't expose the function attributes directly. You need some_object.some_method.im_func to get the function object, which then has a func_defaults attribute. > and

Re: default argument in method

There's some_object.some_method.func_defaults and some_function.func_defaults both are a settable attribute. How to set the methods func_defaults? You'd have to have code in _getattribute__(yourmethod) if not __getattr__(yourmethod) def __getattribute__(self, attr): if attr == self.my_method:

Re: default argument in method

On Thursday 16 December 2010, 00:56:31 Steven D'Aprano wrote: > On Wed, 15 Dec 2010 21:10:05 +0100, Hans-Peter Jansen wrote: > > Since this is a major pitfall, it might be worth mentioning, that > > mutable default arguments are generally a bad idea, as the default > > arguments are evaluated just

Re: default argument in method

On Wed, 15 Dec 2010 21:10:05 +0100, Hans-Peter Jansen wrote: > Since this is a major pitfall, it might be worth mentioning, that > mutable default arguments are generally a bad idea, as the default > arguments are evaluated just once, hence e.g. using an empty list might > contain the items, that

Re: default argument in method

On Monday 13 December 2010, 18:14:27 Godson Gera wrote: > On Sun, Dec 12, 2010 at 5:05 PM, ernest wrote: > > Hi, > > > > I'd like to have a reference to an instance attribute as > > default argument in a method. It doesn't work because > > "self" is not defined at the time the method signature is

Re: default argument in method

On 12/13/2010 12:14 PM, Godson Gera wrote: > > > On Sun, Dec 12, 2010 at 5:05 PM, ernest > wrote: > > Hi, > > I'd like to have a reference to an instance attribute as > default argument in a method. It doesn't work because > "self" is not defined at th

Re: default argument in method

On Sun, Dec 12, 2010 at 5:05 PM, ernest wrote: > Hi, > > I'd like to have a reference to an instance attribute as > default argument in a method. It doesn't work because > "self" is not defined at the time the method signature is > evaluated. For example: > > class C(object): >def __init__(se

Re: default argument in method

ernest wrote: Hi, I'd like to have a reference to an instance attribute as default argument in a method. It doesn't work because "self" is not defined at the time the method signature is evaluated. For example: class C(object): def __init__(self): self.foo = 5 def m(self, val=se

Re: default argument in method

On Sun, Dec 12, 2010 at 3:35 AM, ernest wrote: > Hi, > > I'd like to have a reference to an instance attribute as > default argument in a method. It doesn't work because > "self" is not defined at the time the method signature is > evaluated. For example: > > class C(object): >    def __init__(sel

default argument in method

Hi, I'd like to have a reference to an instance attribute as default argument in a method. It doesn't work because "self" is not defined at the time the method signature is evaluated. For example: class C(object): def __init__(self): self.foo = 5 def m(self, val=self.foo):