How to set a class inheritance at instance creation?
glomde
tbrkic at yahoo.com
Tue May 29 13:35:21 EDT 2007
On 29 Maj, 19:27, "shand... at gmail.com" <shand... at gmail.com> wrote:
> Why not just have Lang1 and Lang2 inherit from WriteStruct as well?
This wont work I think since if add antoher Class:
class WriteStruct():
def func1(self);
print "Hello2"
def Generate(self):
self.func1()
class WriteStruct2(WriteStruct):
def func1(self);
print "Hello"
def Generate(self):
self.func1()
Den if Lang1, inherit both WriteStruct and WriteStruct2 I will
get name clashes.
In my real code I have very big Generate Method in WriteStruct that
calls submethods.
and thes submethods should be overriden by the subclasses. So I cant
change the name
on the submethods.
>
> On May 29, 8:52 am, glomde <tbr... at yahoo.com> wrote:
>
> > Hi I wonder if you can set what subclass a class should
> > have at instance creation.
>
> > The problem is that I have something like:
>
> > class CoreLang():
> > def AssignVar(self, var, value):
> > pass
>
> > class Lang1(CoreLang):
> > def AssignVar(self, var, value):
> > return var, "=", value
>
> > class Lang2(CoreLang):
> > def AssignVar(self, var, value):
> > return var, "<=", value
>
> > class WriteStruct():
> > def Generate(self, vars):
> > for var in vars:
> > print self.AssignVar()
>
> > The problem is that I want WriteStruct to sometimes be a subclass of
> > Lang1 and sometimes
> > of Lang2.
> > In the above example I could but the Generate Method in CoreLang. But
> > in my real
> > example I also want to able to subclass WriteStruct to be able to easy
> > customize WriteStruct.
> > Which I wouldnt be able to do if it was a method in CoreLang.
>
> > So in code I would like to write something like:
>
> > WriteStruct(Lang1).Generate(vars)
>
> > Even better would be that if I in the Lang1 class could
> > just do WriteStruct().Generate(vars) and Lang1 class would
> > magically make WriteStruct a subclass of itself.
>
> > Cheers,
>
> > /T
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