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bpo-33609: small wording fixes to dict ordering docs

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A few wording improvements to dict ordering documentation.
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Neil Schemenauer 2018-06-07 14:46:04 -07:00 • committed by GitHub
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Doc/library/stdtypes.rst
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@ -4248,9 +4248,8 @@ pairs within braces, for example: ``{'jack': 4098, 'sjoerd': 4127}`` or ``{4098:
value)`` pairs. Order comparisons ('<', '<=', '>=', '>') raise value)`` pairs. Order comparisons ('<', '<=', '>=', '>') raise
:exc:`TypeError`. :exc:`TypeError`.
Dict preserves insertion order. Note that updating key doesn't affects the Dictionaries preserve insertion order. Note that updating a key does not
order. On the other hand, keys added after deletion are inserted to the affect the order. Keys added after deletion are inserted at the end. ::
last. ::
>>> d = {"one": 1, "two": 2, "three": 3, "four": 4} >>> d = {"one": 1, "two": 2, "three": 3, "four": 4}
>>> d >>> d
@ -4268,7 +4267,7 @@ pairs within braces, for example: ``{'jack': 4098, 'sjoerd': 4127}`` or ``{4098:
{'one': 42, 'three': 3, 'four': 4, 'two': None} {'one': 42, 'three': 3, 'four': 4, 'two': None}
.. versionchanged:: 3.7 .. versionchanged:: 3.7
Dict order is guaranteed to be insertion order. This behavior was Dictionary order is guaranteed to be insertion order. This behavior was
implementation detail of CPython from 3.6. implementation detail of CPython from 3.6.
.. seealso:: .. seealso::
@ -4307,7 +4306,7 @@ support membership tests:
a :exc:`RuntimeError` or fail to iterate over all entries. a :exc:`RuntimeError` or fail to iterate over all entries.
.. versionchanged:: 3.7 .. versionchanged:: 3.7
Dict order is guaranteed to be insertion order. Dictionary order is guaranteed to be insertion order.
.. describe:: x in dictview .. describe:: x in dictview
@ -4721,3 +4720,4 @@ types, where they are relevant. Some of these are not reported by the
.. [5] To format only a tuple you should therefore provide a singleton tuple whose only .. [5] To format only a tuple you should therefore provide a singleton tuple whose only
element is the tuple to be formatted. element is the tuple to be formatted.