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bpo-33799: Remove non-ordered dicts comments from FAQ

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Andrés Delfino 2018-06-08 03:38:07 -03:00 • committed by INADA Naoki
parent b1f690294d
commit 396ecb9c3e
2 changed files with 1 additions and 10 deletions
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6
Doc/faq/design.rst
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@ -495,11 +495,7 @@ on the key and a per-process seed; for example, "Python" could hash to
to 1142331976. The hash code is then used to calculate a location in an to 1142331976. The hash code is then used to calculate a location in an
internal array where the value will be stored. Assuming that you're storing internal array where the value will be stored. Assuming that you're storing
keys that all have different hash values, this means that dictionaries take keys that all have different hash values, this means that dictionaries take
constant time -- O(1), in computer science notation -- to retrieve a key. It constant time -- O(1), in computer science notation -- to retrieve a key.
also means that no sorted order of the keys is maintained, and traversing the
array as the ``.keys()`` and ``.items()`` do will output the dictionary's
content in some arbitrary jumbled order that can change with every invocation of
a program.
Why must dictionary keys be immutable? Why must dictionary keys be immutable?

5
Doc/faq/programming.rst
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@ -1315,11 +1315,6 @@ that final assignment still results in an error, because tuples are immutable.
Dictionaries Dictionaries
============ ============
How can I get a dictionary to store and display its keys in a consistent order?
-------------------------------------------------------------------------------
Use :class:`collections.OrderedDict`.
I want to do a complicated sort: can you do a Schwartzian Transform in Python? I want to do a complicated sort: can you do a Schwartzian Transform in Python?
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