[issue34336] Don't promote possibility to omit Optional on optional/defaulted arguments

[Ivan Levkivskyi]

Change by Ivan Levkivskyi :


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resolution:  -> fixed
stage: patch review -> resolved
status: open -> closed

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[issue34336] Don't promote possibility to omit Optional on optional/defaulted arguments

[miss-islington]

miss-islington  added the comment:


New changeset e610c4f9984d50b45eb00e04c73c4208c0542a3b by Miss Islington (bot) 
in branch '3.7':
bpo-34336: Don't promote possibility to leave out typing.Optional (GH-8677)
https://github.com/python/cpython/commit/e610c4f9984d50b45eb00e04c73c4208c0542a3b


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[issue34336] Don't promote possibility to omit Optional on optional/defaulted arguments

[miss-islington]

miss-islington  added the comment:


New changeset 02c4eae35cd24ab71c12b5e61ec22e993ac4839b by Miss Islington (bot) 
in branch '3.6':
bpo-34336: Don't promote possibility to leave out typing.Optional (GH-8677)
https://github.com/python/cpython/commit/02c4eae35cd24ab71c12b5e61ec22e993ac4839b


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[issue34336] Don't promote possibility to omit Optional on optional/defaulted arguments

[miss-islington]

Change by miss-islington :


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pull_requests: +8174

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[issue34336] Don't promote possibility to omit Optional on optional/defaulted arguments

[miss-islington]

Change by miss-islington :


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pull_requests: +8175

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[issue34336] Don't promote possibility to omit Optional on optional/defaulted arguments

[Ivan Levkivskyi]

Ivan Levkivskyi  added the comment:


New changeset 336c945858055059a65134d4c501a85037d70d99 by Ivan Levkivskyi 
(Ville Skyttä) in branch 'master':
bpo-34336: Don't promote possibility to leave out typing.Optional (#8677)
https://github.com/python/cpython/commit/336c945858055059a65134d4c501a85037d70d99


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nosy: +levkivskyi

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[issue34336] Don't promote possibility to omit Optional on optional/defaulted arguments

[Ville Skyttä]

Change by Ville Skyttä :


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keywords: +patch
pull_requests: +8172
stage:  -> patch review

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[issue34336] Don't promote possibility to omit Optional on optional/defaulted arguments

[Ville Skyttä]

New submission from Ville Skyttä :

The documentation of typing.Optional seems to promote practices for not 
specifying Optional that are recommended against in PEP 484:

https://www.python.org/dev/peps/pep-0484/#union-types -- end of chapter 
recommends against inferring Optional.

https://docs.python.org/3.8/library/typing.html#typing.Optional -- second 
paragraph promotes the possibility of leaving out Optional.

I'm not sure how to improve the typing.Optional doc wording, perhaps it would 
be better to just remove the second paragraph altogether.

--
assignee: docs@python
components: Documentation
messages: 323132
nosy: docs@python, scop
priority: normal
severity: normal
status: open
title: Don't promote possibility to omit Optional on optional/defaulted 
arguments
type: enhancement
versions: Python 3.8

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