On May 17, 8:04 am, "Gabriel Genellina" <[EMAIL PROTECTED]> wrote: > En Fri, 16 May 2008 20:44:00 -0300, Terry <[EMAIL PROTECTED]> > escribió: > > > Is there a simple way to get all the instances of one class? I mean > > without any additional change to the class. > > Try with gc.get_referrers() > > py> import gc > py> class A(object): pass > ... > py> a,b,c = A(),A(),A() > py> A > <class __main__.A at 0x00A3F4E0> > py> for item in gc.get_referrers(A): print type(item) > ... > <type 'getset_descriptor'> > <type 'getset_descriptor'> > <type 'tuple'> > <class '__main__.A'> > <class '__main__.A'> > <class '__main__.A'> > <type 'dict'> > <type 'dict'> > > We need to filter that list, keeping only A's instances: > > py> [item for item in gc.get_referrers(A) if isinstance(item,A)] > [<__main__.A object at 0x00A40DC8>, <__main__.A object at 0x00A40DF0>, > <__main__.A object at 0x00A40E18>] > > -- > Gabriel Genellina
But I saw in the help that we should "Avoid using get_referrers() for any purpose other than debugging. " -- http://mail.python.org/mailman/listinfo/python-list
