Static class properties (read-only)
tjreedy at udel.edu
Thu Aug 7 20:03:05 CEST 2003
"Greg Brunet" <gregbrunet at NOSPAMsempersoft.com> wrote in message
news:vj4v20o2qfi7c9 at corp.supernews.com...
> In puzzling over classes, I'm wondering if classes can have
> static properties? I certainly seem to be able to do create static
> properties like this:
> class C(object):
> count = 0
> def __init__(self,s):
> C.count += 1
> self.Name = sCC
> def __del__(self):
> C.count -= 1
> and C.count should have a count of the number of its instances that
> been created. However, someone could set the value directly.
Prefixing count with a single underscore will tell others that is is
private-- they should not write it and should not depend on being able
to read it in future versions. Prefixing with 2 underscores will
invoke name-mangling, which you need to read about before using.
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