On Sat, 21 Jan 2012 19:36:32 -0800, Chris Rebert wrote: > On Sat, Jan 21, 2012 at 7:04 PM, Tamer Higazi <th9...@googlemail.com> > wrote: >> Hi people! >> I have asked myself the following thing. >> >> How do I access the address of an object > > id(obj) happens to do that in CPython, but it's a mere implementation > detail.
I really wish that CPython didn't expose the fact that id happens to use address. That simply gives people the wrong idea. Jython has the right approach, in my opinion. Objects are given IDs on request, starting with 1, and no id is ever re-used: steve@runes:~$ jython Jython 2.5.1+ (Release_2_5_1, Aug 4 2010, 07:18:19) [OpenJDK Client VM (Sun Microsystems Inc.)] on java1.6.0_18 Type "help", "copyright", "credits" or "license" for more information. >>> id(None) 1 >>> id(True) 2 On the other hand, presumably this means that Jython objects need an extra field to store the ID, so the CPython approach is a space optimization. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
