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From: Thomas Rachel <nutznetz-0c1b6768-bfa9-48d5-a470-7603bd3aa915@spamschutz.glglgl.de>
Newsgroups: comp.lang.python
Subject: Re: Basic misunderstanding on object creation
Date: Wed, 13 May 2015 16:24:27 +0200
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Xref: csiph.com comp.lang.python:90554

Am 13.05.2015 um 15:25 schrieb andrew cooke:

>>>> class Foo:
> ...     def __new__(cls, *args, **kargs):
> ...         print('new', args, kargs)
> ...         super().__new__(cls, *args, **kargs)

> new (1,) {}
> Traceback (most recent call last):
>    File "<stdin>", line 1, in <module>
>    File "<stdin>", line 4, in __new__
> TypeError: object() takes no parameters

object's __new__() dosn't take any parameters. So call it without arguments:

class Foo:
     def __new__(cls, *args, **kargs):
         print('new', args, kargs)
         super().__new__(cls)

(at least if we know that we inherit from object. Might be that this one 
doesn't work very good with multiple inheritance...)


Thomas