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nascheme merged 2 commits into from
Jun 7, 2018
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bpo-33609: small fix to wording in help file #7485

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07eebfe
Update stdtypes.rst
nascheme Jun 7, 2018
4ff8ee9
More wording tweaks for dict ordering docs.
nascheme Jun 7, 2018
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10 changes: 5 additions & 5 deletions Doc/library/stdtypes.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -4248,9 +4248,8 @@ pairs within braces, for example: ``{'jack': 4098, 'sjoerd': 4127}`` or ``{4098:
value)`` pairs. Order comparisons ('<', '<=', '>=', '>') raise
:exc:`TypeError`.

Dict preserves insertion order. Note that updating key doesn't affects the
order. On the other hand, keys added after deletion are inserted to the
last. ::
Dictionaries preserve insertion order. Note that updating a key does not
affect the order. Keys added after deletion are inserted at the end. ::

>>> d = {"one": 1, "two": 2, "three": 3, "four": 4}
>>> d
Expand All @@ -4268,7 +4267,7 @@ pairs within braces, for example: ``{'jack': 4098, 'sjoerd': 4127}`` or ``{4098:
{'one': 42, 'three': 3, 'four': 4, 'two': None}

.. 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.

.. seealso::
Expand Down Expand Up @@ -4307,7 +4306,7 @@ support membership tests:
a :exc:`RuntimeError` or fail to iterate over all entries.

.. versionchanged:: 3.7
Dict order is guaranteed to be insertion order.
Dictionary order is guaranteed to be insertion order.

.. describe:: x in dictview

Expand Down Expand Up @@ -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
element is the tuple to be formatted.