finding name of instances created

André andre.roberge at
Fri Jan 21 21:33:58 EST 2005

Steven Bethard wrote:
> André wrote:
> > Using the method suggested by Steven Bethard, I *almost* got it
> > the way I would like.
> It looks like you want PrivateClass.dict updated every time that
> globals() is updated.

yes, that is what I would like to do.

>You can just use globals directly instead:
> py> class PrivateClass(object):
> ...     def __init__(self, globals):
> ...         self.globals = globals
> ...     def apparently_simple_method(self):
> ...         for name, value in self.globals.iteritems():
> ...             if value is self:
> ...                 print "instance %s called not so simple" % name
> ...
> py> def public_class():
> ...     return PrivateClass(globals())
> ...
> py> alpha = public_class()
> py> alpha.apparently_simple_method()
> instance alpha called not so simple
> py> beta = public_class()
> py> beta.apparently_simple_method()
> instance beta called not so simple
That's exactly what I was looking for; thank you!

> On the other hand, the iteration in
> PrivateClass.apparently_simple_method has a very bad code smell...
I'm not sure what you mean...
Is it because it makes use of information that is
exterior to the class, which is not passed as a parameter
to the method?
[feel free to ignore this question if you want; you have
already helped me tremendously!!!]


More information about the Python-list mailing list