Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.lang.python > #57815
| From | Johannes Bauer <dfnsonfsduifb@gmx.de> |
|---|---|
| Newsgroups | comp.lang.python |
| Subject | Re: Python3 doc, operator reflection |
| Date | 2013-10-28 13:45 +0100 |
| Message-ID | <bd74k7Fqup0U1@mid.dfncis.de> (permalink) |
| References | <bd71ueFqcsiU1@mid.dfncis.de> <mailman.1696.1382963021.18130.python-list@python.org> |
Am 28.10.2013 13:23, schrieb Chris Angelico: > On Mon, Oct 28, 2013 at 11:00 PM, Johannes Bauer <dfnsonfsduifb@gmx.de> wrote: >>> There are no swapped-argument versions of these methods (to be used when the left argument does not support the operation but the right argument does); rather, __lt__() and __gt__() are each other’s reflection, __le__() and __ge__() are each other’s reflection, and __eq__() and __ne__() are their own reflection. >> >> But shouldn't __lt__ be the reflection or __ge__ and __gt__ the >> reflection of __le__? > > lt is the negation of ge, but it's the reflection of gt. Consider this: > > 1 < 2 > 2 > 1 > > If Python can't ask 1 if it's less than 2, it'll ask 2 if it's greater than 1. Ah, I see. Thanks for clearing that up! Best regards, Joe
Back to comp.lang.python | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Python3 doc, operator reflection Johannes Bauer <dfnsonfsduifb@gmx.de> - 2013-10-28 13:00 +0100
Re: Python3 doc, operator reflection Chris Angelico <rosuav@gmail.com> - 2013-10-28 23:23 +1100
Re: Python3 doc, operator reflection Johannes Bauer <dfnsonfsduifb@gmx.de> - 2013-10-28 13:45 +0100
Re: Python3 doc, operator reflection random832@fastmail.us - 2013-10-28 14:31 -0400
csiph-web