On Sep 6, 1:23 pm, "Diez B. Roggisch" <[EMAIL PROTECTED]> wrote:
> Mohamed Yousef schrieb:
>
> > ðWhat about no Constructor , and a custom instancing function that can
> > return either None or the instance wanted
>
> That doesn't solve the underlying problem - the instance is created.
> Just becau
Fredrik Lundh wrote:
Aigars Aigars wrote:
I want MyClass to perform some tests and if them fail, I do not want
instance to be created.
If you do not want the instance created at all, you would have to write
a custom .__new__ method, but that is tricky, something I would have to
look up ho
I do not want code outside my class to perform tests and decide to
create instance or not.
Fredrik Lundh's advice to rise exception works perfectly.
Thanks to all,
Aigars
Quoting Mohamed Yousef : ًWhat about no Constructor , and a
custom instancing function that can
return either None or the ins
Mohamed Yousef schrieb:
ًWhat about no Constructor , and a custom instancing function that can
return either None or the instance wanted
That doesn't solve the underlying problem - the instance is created.
Just because it wasn't *returned*, doesn't mean it isn't there.
Diez
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http://mail.py
ًWhat about no Constructor , and a custom instancing function that can
return either None or the instance wanted
--
http://mail.python.org/mailman/listinfo/python-list
Aigars Aigars wrote:
I want MyClass to perform some tests and if them fail, I do not want
instance to be created.
But in code I wrote instance is created and also has parameters, that it
should not have in case of tests failure.
Is there a way to perform tests in MyClass.__init__ and set in
