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Groups > comp.lang.python > #73753
| Date | 2014-06-30 10:09 -0700 |
|---|---|
| From | Ethan Furman <ethan@stoneleaf.us> |
| Subject | Re: Creating a dict-like class that counts successful and failed key matches |
| References | <1404135829.10485.136092537.2F0486D2@webmail.messagingengine.com> <CAPTjJmpkz4DPyCYSPNoteUuuBOzySzhjHzYPEXUv4MFH1sYE1A@mail.gmail.com> <1404139465.27658.136120269.0CA38211@webmail.messagingengine.com> <53B18398.4090302@stoneleaf.us> <1404146834.28955.136173757.51576D44@webmail.messagingengine.com> |
| Newsgroups | comp.lang.python |
| Message-ID | <mailman.11348.1404148248.18130.python-list@python.org> (permalink) |
On 06/30/2014 09:47 AM, python@bdurham.com wrote: >> >> Keep in mind that dict /will not/ call your overridden methods, so if, >> for example, you provide your own __getitem__ you will also need to >> provide your own copies of any dict method that calls __getitem__. > > I'm not sure I understand. Are you saying that Chris's __getitem__ will > not be called by other dict methods that would normally call this magic > method and instead call the parent's __getitem__ directly (via super() > or something similar?)? That is what I am saying. > Is this specific to the native Dict class (because its implemented in C > vs. Python?) or is this behavior more general. I /think/ it's only dict, but I haven't played with subclassing lists, tuples, etc. It's not a C vs Python issue, but a 'implemented with __private methods' issue. From what I have seen so far in the confusion and frustration that decision has caused, I do not think it was a good one. :( -- ~Ethan~
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Re: Creating a dict-like class that counts successful and failed key matches Ethan Furman <ethan@stoneleaf.us> - 2014-06-30 10:09 -0700
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