[Tutor] Class attributes not overriding parameters

[Jan Eden]

Hi Liam,

Liam Clarke wrote on 06.11.2005:

>Hi Jan,
>
>Won't this
>
>site_id = property(GetSiteID, SetSiteID)
>
>and this
>
>site_id = 1
>
>collide?
>

Yup. After writing my message, I thought about it again: the property function gets never executed when I use the class attribute.

So I changed the setup to this:

class Base:
    def GetSiteID(self):
        return self._site_id
    
    def SetSiteID(self, value):
        if not (hasattr(self, '_site_id') and self._site_id): self._site_id = value
        
    site_id = property(GetSiteID, SetSiteID)

class Lists(Base):
    ...

class SiteList(Lists, Data.Lists):
    _site_id = 1

which works just as expected. Thanks for yor help!

- Jan
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