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bpo-41810: Reintroduce types.EllipsisType, .NoneType & .NotImplementedType #22336

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Merged
gvanrossum merged 13 commits into from
Sep 22, 2020
Merged

bpo-41810: Reintroduce types.EllipsisType, .NoneType & .NotImplementedType #22336

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00639fc
Reintroduced `types.EllipsisType`
Sep 18, 2020
0a97a88
Replaced `type(...)` and `type(ellipsis)` with `types.EllipsisType`
Sep 18, 2020
8aecfd5
Added `EllipsisType` to the documentation
Sep 18, 2020
4066b4b
Added Misc/NEWS.d and whatsnew entries
Sep 20, 2020
307dcc1
Updated the acknowledgements
Sep 20, 2020
9fc1381
Reintroduced `types.NoneType` and `types.NotImplementedType`
Sep 21, 2020
2791a23
Replaced `type(NotImplemented)` and `type(None)`
Sep 21, 2020
da1ab85
Added `types.NoneType` & `types.NotImplementedType` to whatsnew and t…
Sep 21, 2020
f682623
Replaced a duplicate `EllipsisType` with `NotImplementedType`
Sep 21, 2020
3701498
Provide motivation for the type reintroduction
Sep 21, 2020
33caa6f
Explicitly mention static type checkers
Sep 21, 2020
84ebe18
Revert the `type(...)` to `types....` replacements
Sep 21, 2020
23ed559
Reworded parts of the `constants` documentation
Sep 22, 2020
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Added EllipsisType to the documentation
  • Loading branch information
Bas van Beek committed Sep 21, 2020
commit 8aecfd52580453da2410f2c69d299a5d99016365
3 changes: 2 additions & 1 deletion Doc/library/constants.rst
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Expand Up @@ -59,7 +59,8 @@ A small number of constants live in the built-in namespace. They are:
.. index:: single: ...; ellipsis literal
.. data:: Ellipsis

The same as the ellipsis literal "``...``". Special value used mostly in conjunction
The same as the ellipsis literal "``...``" and sole value of the type
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@terryjreedy terryjreedy Sep 22, 2020

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Suggested change
The same as the ellipsis literal "``...``" and sole value of the type
The same as the ellipsis literal "``...``" and the only instance of

:data:`types.EllipsisType`. Special value used mostly in conjunction
with extended slicing syntax for user-defined container data types.


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7 changes: 7 additions & 0 deletions Doc/library/types.rst
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Expand Up @@ -236,6 +236,13 @@ Standard names are defined for the following types:
Defaults to ``None``. Previously the attribute was optional.


.. data:: EllipsisType

The type of :data:`Ellipsis`.

.. versionadded:: 3.10


.. class:: TracebackType(tb_next, tb_frame, tb_lasti, tb_lineno)

The type of traceback objects such as found in ``sys.exc_info()[2]``.
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