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Groups > comp.lang.python > #95715
| Message-Id | <55dfcf4e$0$1663$c3e8da3$5496439d@news.astraweb.com> |
|---|---|
| From | Steven D'Aprano <steve@pearwood.info> |
| Subject | Re: isinstance() and multiple inheritance/ctypes |
| Newsgroups | comp.lang.python |
| Date | 2015-08-28 13:02 +1000 |
| References | <mrlalj$nlt$1@dont-email.me> <CAPTjJmrrFT3aE3vF8nZiw0uxWGCw18YyEFXvOPCtdQDRxiOY7Q@mail.gmail.com> <mailman.68.1440630846.11709.python-list@python.org> <55df099e$0$1638$c3e8da3$5496439d@news.astraweb.com> <mailman.75.1440686010.11709.python-list@python.org> |
| Organization | Unlimited download news at news.astraweb.com |
On Fri, 28 Aug 2015 12:33 am, Chris Angelico wrote: > On Thu, Aug 27, 2015 at 10:59 PM, Steven D'Aprano <steve@pearwood.info> > wrote: >> On Thu, 27 Aug 2015 09:14 am, Chris Angelico wrote: >> >>> On Thu, Aug 27, 2015 at 9:12 AM, Chris Angelico <rosuav@gmail.com> >>> wrote: >>>> Or is there a magic __isinstance__ >>> >>> Argh, keyed the wrong thing and sent the post prematurely. Meant to say: >>> >>> Or is there a magic __instancecheck__ method somewhere that I'm not >>> aware of? >> >> Yes -- see Terry Reedy's post. >> >> isinstance(inst, klass) ends up calling >> >> type(klass).__instancecheck__(klass, inst) > > I'm aware that it _can_ exist, but I was asking if one _did_ exist. Er, I'm still not getting you. Of course one exists, otherwise isinstance would end up raising an exception. py> type.__instancecheck__ <method '__instancecheck__' of 'type' objects> What am I missing? -- Steven
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isinstance() and multiple inheritance/ctypes Rob Gaddi <rgaddi@technologyhighland.invalid> - 2015-08-26 21:21 +0000
Re: isinstance() and multiple inheritance/ctypes Terry Reedy <tjreedy@udel.edu> - 2015-08-26 17:46 -0400
Re: isinstance() and multiple inheritance/ctypes Chris Angelico <rosuav@gmail.com> - 2015-08-27 09:12 +1000
Re: isinstance() and multiple inheritance/ctypes Rob Gaddi <rgaddi@technologyhighland.invalid> - 2015-08-26 23:42 +0000
Re: isinstance() and multiple inheritance/ctypes Chris Angelico <rosuav@gmail.com> - 2015-08-27 09:14 +1000
Re: isinstance() and multiple inheritance/ctypes Steven D'Aprano <steve@pearwood.info> - 2015-08-27 22:59 +1000
Re: isinstance() and multiple inheritance/ctypes Chris Angelico <rosuav@gmail.com> - 2015-08-28 00:33 +1000
Re: isinstance() and multiple inheritance/ctypes Steven D'Aprano <steve@pearwood.info> - 2015-08-28 13:02 +1000
Re: isinstance() and multiple inheritance/ctypes Chris Angelico <rosuav@gmail.com> - 2015-08-28 13:25 +1000
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