diff --git a/Doc/howto/functional.rst b/Doc/howto/functional.rst index 40601812a77cb5..47a5bb9cf284a4 100644 --- a/Doc/howto/functional.rst +++ b/Doc/howto/functional.rst @@ -273,23 +273,24 @@ dictionary's keys:: >>> m = {'Jan': 1, 'Feb': 2, 'Mar': 3, 'Apr': 4, 'May': 5, 'Jun': 6, ... 'Jul': 7, 'Aug': 8, 'Sep': 9, 'Oct': 10, 'Nov': 11, 'Dec': 12} - >>> for key in m: #doctest: +SKIP + >>> for key in m: ... print(key, m[key]) - Mar 3 + Jan 1 Feb 2 - Aug 8 - Sep 9 + Mar 3 Apr 4 + May 5 Jun 6 Jul 7 - Jan 1 - May 5 + Aug 8 + Sep 9 + Oct 10 Nov 11 Dec 12 - Oct 10 -Note that the order is essentially random, because it's based on the hash -ordering of the objects in the dictionary. +Note that starting with Python 3.7, dictionary iteration order is guaranteed +to be the same as the insertion order. In earlier versions, the behaviour was +unspecified and could vary between implementations. Applying :func:`iter` to a dictionary always loops over the keys, but dictionaries have methods that return other iterators. If you want to iterate @@ -301,8 +302,8 @@ The :func:`dict` constructor can accept an iterator that returns a finite stream of ``(key, value)`` tuples: >>> L = [('Italy', 'Rome'), ('France', 'Paris'), ('US', 'Washington DC')] - >>> dict(iter(L)) #doctest: +SKIP - {'Italy': 'Rome', 'US': 'Washington DC', 'France': 'Paris'} + >>> dict(iter(L)) + {'Italy': 'Rome', 'France': 'Paris', 'US': 'Washington DC'} Files also support iteration by calling the :meth:`~io.TextIOBase.readline` method until there are no more lines in the file. This means you can read each pFad - Phonifier reborn

Pfad - The Proxy pFad of © 2024 Garber Painting. All rights reserved.

Note: This service is not intended for secure transactions such as banking, social media, email, or purchasing. Use at your own risk. We assume no liability whatsoever for broken pages.


Alternative Proxies:

Alternative Proxy

pFad Proxy

pFad v3 Proxy

pFad v4 Proxy