8000 bpo-43905: Expand dataclasses.astuple() and asdict() docs by akulakov · Pull Request #26154 · python/cpython · GitHub
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bpo-43905: Expand dataclasses.astuple() and asdict() docs #26154

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Nov 29, 2021
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bpo-43905: Expand dataclasses.astuple() and asdict() docs #26154

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75a6626
Update dataclasses.rst
akulakov May 15, 2021
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Moved 'deepcopy' sentence to the first paragraph.
akulakov May 24, 2021
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📜🤖 Added by blurb_it.
blurb-it[bot] May 24, 2021
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fix trailing whitespace
akulakov Nov 29, 2021
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fix one more trailing space
akulakov Nov 29, 2021
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added deepcopy note and workaround to `asdict`
akulakov Nov 29, 2021
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remove tildes in links
akulakov Nov 29, 2021
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akulakov Nov 29, 2021
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Update dataclasses.rst 
Expanded ``astuple()`` docs.
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@akulakov
akulakov authored May 15, 2021
commit 75a662640d20a40e11d9d7bdcc5887888e2ec54d
6 changes: 6 additions & 0 deletions Doc/library/dataclasses.rst
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Expand Up @@ -355,6 +355,12 @@ Module contents

assert astuple(p) == (10, 20)
assert astuple(c) == ([(0, 0), (10, 4)],)

The tuple is a :func:`copy.deepcopy` of contained objects, which may
be an issue in some corner cases. To create a shallow copy, the
following workaround may be used::

tuple(getattr(instance, field.name) for field in dataclasses.fields(instance))

Raises :exc:`TypeError` if ``instance`` is not a dataclass instance.

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