On Fri, Sep 24, 2010 at 1:43 AM, Roelof Wobben <rwob...@hotmail.com> wrote:
>
>
>
> ----------------------------------------
>> From: st...@pearwood.info
>> To: tutor@python.org
>> Date: Fri, 24 Sep 2010 13:00:40 +1000
>> Subject: Re: [Tutor] pure function problem
>>
>> Roelof, please learn to delete unnecessarily quoted text. There's no
>> need to quoted the entire discussion every time you answer.
>>
>> On Fri, 24 Sep 2010 06:20:25 am Roelof Wobben wrote:
>>
>>> time = tijd()
>> [...]
>>> print time(uitkomst)
>>
>> Why are you calling time as a function, when it is a tijd instance?
>>
>>
>>
>>
>> --
>> Steven D'Aprano
>> _______________________________________________
>> Tutor maillist - Tutor@python.org
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>
>
> Hello Steve,
>
> I found this in my tutorial.
>
> 13.8. Instances as return values¶
> Functions can return instances. For example, find_center takes a Rectangle as
> an argument and returns a Point that contains the coordinates of the center
> of the Rectangle:
> def find_center(box):
> p = Point()
> p.x = box.corner.x + box.width/2.0
> p.y = box.corner.y - box.height/2.0
> return p
> To call this function, pass box as an argument and assign the result to a
> variable:
>>>> center = find_center(box)
>>>> print_point(center)
> (50.0, 100.0)
>
>
> So i followed it but appearently not the good way.
>
> Roelof
>
> _______________________________________________
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>
If I'm understanding the question correctly(I skim alot)
It looks like you're trying to use a class like a function.
If you had:
class tijd(object):
def bob:
pass
then you would call bob from the class in an instance like this:
aclass = tijd()
calledClassFunction = aclass.bob
but if you have
aclass = tijd()
calledClassFunction = aclass.notbob
then you can't access it, because notbob is not in tijd(), therefore
not in aclass, which is still the same as being tijd().bob, you just
have to call the
class instance before the function can be accessed.
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