gh-70647: Better promote how to safely parse yearless dates in datetime. by gpshead · Pull Request #116179 · python/cpython · GitHub

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gpshead:docs/datetime/02-29

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Pull requests 2.6k

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datetime.strptime without a year fails on Feb 29 #70647

: Better promote how to safely parse yearless dates in …

awaiting core review

doctest code within note is bad, dedent.

View reviewed changes

GH-70647: Deprecate strptime day of month parsing without a year present to avoid leap-year bugs #117107

DeprecationWarning on python3.13 lucc/khard#335

Merge branch 'main' into docs/datetime/02-29

Update to match the error message.

needs backport to 3.12

needs backport to 3.13

remove no longer referenced footnote

[3.12] gh-70647: update docs to mention the datetime 1900 year default 2/29 issue #131534

ignore the warning in the doctest

View reviewed changes

needs backport to 3.14

Merge branch 'main' into docs/datetime/02-29

Merge branch 'main' into docs/datetime/02-29

use Petr's suggestion for the docs to hide the warning processing

cover date.strptime (3.14) as well

@github-project-automation

: Better promote how to safely parse yearless dates in …

bedevere-app Bot commented Dec 21, 2025

GH-143037 is a backport of this pull request to the 3.14 branch.

: Better promote how to safely parse yearless dates in…

: Better promote how to safely parse yearless dates in …

: Better promote how to safely parse yearless dates in…

: Better promote how to safely parse yearless dates in …

Add failing test for partial date with leap day