counting references to an instance

Aahz aahz at pythoncraft.com
Wed Feb 4 20:57:59 CET 2004


In article <pan.2004.02.04.18.55.02.385092.6672 at sympatico.ca>,
Brian  <balex at sympatico.ca> wrote:
>
>Is it possible to get an object to return the number of references there
>are to itself?
>
>Ex:
>
>class test(object):
> pass
>
>a = test()
>b = a
>
># Should print "2", if I knew the name of the method.
>print a.refCount()

sys.getrefcount(a) will do the trick -- but it will print 3.  Can you
figure out why?
-- 
Aahz (aahz at pythoncraft.com)           <*>         http://www.pythoncraft.com/

"The joy of coding Python should be in seeing short, concise, readable
classes that express a lot of action in a small amount of clear code -- 
not in reams of trivial code that bores the reader to death."  --GvR



More information about the Python-list mailing list