On 21 Jan 2007 12:49:17 -0800, Ramashish Baranwal
<[EMAIL PROTECTED]> wrote:
> class Base:
> staticvar = 'Base'
>
> @staticmethod
> def printname():
> # this doesn't work
> # print staticvar
> # this does work but derived classes wouldn't behave as I want
> print Base.staticvar
>
> class Derived(Base):
> staticvar = 'Derived'
>
> Base.printname() # should print 'Base'
> Derived.printname() # should print 'Derived'
>
> Any idea on how to go about this? Also from a staticmethod how can I
> find out other attributes of the class (not objects)? Do static methods
> get some classinfo via some implicit argument(s)?
No, staticmethods get told nothing about the class they're being
defined in. What you want is a classmethod, which gets passed the
class to work with.
Using classmethods, your code becomes:
#untested, bear in mind
class Base:
staticvar = 'Base'
@classmethod
def printname(cls):
print cls.staticvar
class Derived(Base):
staticvar = 'Derived'
Base.printname() #prints 'Base'
Derived.printname() #prints 'Derived'
Incidentally, you can also use cls.__name__ for this purpose, but I
guess that your actual motivation for this is more complicated than
class names.
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