dict: keys() and values() order guaranteed to be same?

From	Henrik Faber <hfaber@invalid.net>
Newsgroups	comp.lang.python
Subject	dict: keys() and values() order guaranteed to be same?
Date	2012-07-23 13:23 +0200
Organization	Aioe.org NNTP Server
Message-ID	<jujc6j$rk5$1@speranza.aioe.org> (permalink)

Show all headers | View raw

Hi group,

I have a question of which I'm unsure if the specification guarantees
it. With an arbitrary dictionaty d, are d.keys() and d.values()
guaraneed to be in the same order? I.e. what I mean is:

# For all dictionaries d:
assert({ list(d.keys())[i]: list(d.values())[i] for i in range(len(d)) }
== d)

I'm curious if it's allowed because in a special case it would make for
a nice shortcut and clean code. I think however that the implementation
may chose not to have them in the same order necessarily -- then I'd
obviously avoid relying on it.

Best regards,
Joe

Back to comp.lang.python | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

dict: keys() and values() order guaranteed to be same? Henrik Faber <hfaber@invalid.net> - 2012-07-23 13:23 +0200
  Re: dict: keys() and values() order guaranteed to be same? Philipp Hagemeister <phihag@phihag.de> - 2012-07-23 13:40 +0200
    Re: dict: keys() and values() order guaranteed to be same? Henrik Faber <hfaber@invalid.net> - 2012-07-23 14:19 +0200
  Re: dict: keys() and values() order guaranteed to be same? Stefan Behnel <stefan_ml@behnel.de> - 2012-07-23 13:43 +0200
  Re: dict: keys() and values() order guaranteed to be same? Stefan Behnel <stefan_ml@behnel.de> - 2012-07-23 13:58 +0200
    Re: dict: keys() and values() order guaranteed to be same? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-07-23 15:20 +0000
      Re: dict: keys() and values() order guaranteed to be same? Chris Angelico <rosuav@gmail.com> - 2012-07-24 02:18 +1000
      Re: dict: keys() and values() order guaranteed to be same? Ethan Furman <ethan@stoneleaf.us> - 2012-07-26 14:06 -0700
      Re: dict: keys() and values() order guaranteed to be same? Ethan Furman <ethan@stoneleaf.us> - 2012-07-26 14:03 -0700

csiph-web