Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.lang.python > #75487
| Path | csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!us.feeder.erje.net!feeder.erje.net!eu.feeder.erje.net!eternal-september.org!feeder.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail |
|---|---|
| From | Marko Rauhamaa <marko@pacujo.net> |
| Newsgroups | comp.lang.python |
| Subject | Re: Dict when defining not returning multi value key error |
| Date | Fri, 01 Aug 2014 18:39:30 +0300 |
| Organization | A noiseless patient Spider |
| Lines | 20 |
| Message-ID | <87vbqcnrrh.fsf@elektro.pacujo.net> (permalink) |
| References | <CAFBK5a-hjukHaHOim4tL_RerXiHsFP03eaQoN42yGfeCJ9NZPg@mail.gmail.com> <CAGGBd_riruS0nRM9+o+1dz=jVZgYOo09qX97P+LWK5Nu6HTYRw@mail.gmail.com> <mailman.12501.1406862741.18130.python-list@python.org> <53db11c1$0$29986$c3e8da3$5496439d@news.astraweb.com> <mailman.12503.1406866676.18130.python-list@python.org> <53db96bc$0$29986$c3e8da3$5496439d@news.astraweb.com> <mailman.12512.1406901485.18130.python-list@python.org> |
| Mime-Version | 1.0 |
| Content-Type | text/plain; charset=us-ascii |
| Injection-Info | mx05.eternal-september.org; posting-host="ff5cf27ef3d5b31f034d3b72bdc27a41"; logging-data="20322"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/0QbZkfXLXpAgyEbmXdUTx" |
| User-Agent | Gnus/5.13 (Gnus v5.13) Emacs/23.3 (gnu/linux) |
| Cancel-Lock | sha1:xwQNhlUvCLYL5J3IAflZmuBqm/Q= sha1:yCRtmK2BI/BqvizJ/2xp6bB6frE= |
| Xref | csiph.com comp.lang.python:75487 |
Show key headers only | View raw
Chris Angelico <rosuav@gmail.com>: >> but hash(x) == hash(y) does NOT imply that x == y. > > Hello, pigeonhole principle :) If this were false - that is, if equal > hashes DID imply equal objects - it would be necessary to completely > encode an object's state in its hash, and hashes would be impossibly > large. This would, in fact, destroy their value completely. Well, modern computing assumes precisely: hash(x) == hash(y) => x == y That principle is at play with strong authentication (HTTPS et al), version control (git et al), A handful of bits uniquely identify an object regardless of its size. Marko
Back to comp.lang.python | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Re: Dict when defining not returning multi value key error Dan Stromberg <drsalists@gmail.com> - 2014-07-31 20:12 -0700
Re: Dict when defining not returning multi value key error Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-08-01 04:04 +0000
Re: Dict when defining not returning multi value key error Ben Finney <ben+python@benfinney.id.au> - 2014-08-01 14:17 +1000
Re: Dict when defining not returning multi value key error Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-08-01 13:31 +0000
Re: Dict when defining not returning multi value key error Chris Angelico <rosuav@gmail.com> - 2014-08-01 23:57 +1000
Re: Dict when defining not returning multi value key error Marko Rauhamaa <marko@pacujo.net> - 2014-08-01 18:39 +0300
Re: Dict when defining not returning multi value key error Terry Reedy <tjreedy@udel.edu> - 2014-08-01 17:42 -0400
Re: Dict when defining not returning multi value key error Chris Angelico <rosuav@gmail.com> - 2014-08-02 09:57 +1000
Re: Dict when defining not returning multi value key error Marko Rauhamaa <marko@pacujo.net> - 2014-08-02 09:41 +0300
Re: Dict when defining not returning multi value key error Marko Rauhamaa <marko@pacujo.net> - 2014-08-02 10:06 +0300
Re: Dict when defining not returning multi value key error Chris Angelico <rosuav@gmail.com> - 2014-08-02 20:58 +1000
Re: Dict when defining not returning multi value key error Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-08-02 11:47 +1000
Re: Dict when defining not returning multi value key error Chris Angelico <rosuav@gmail.com> - 2014-08-02 12:13 +1000
csiph-web