Skip to content

[3.13] gh-70647: Better promote how to safely parse yearless dates in datetime. (GH-116179) #143038

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
gpshead merged 2 commits into from
Dec 21, 2025
Merged

[3.13] gh-70647: Better promote how to safely parse yearless dates in datetime. (GH-116179) #143038

Changes from 1 commit
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
fc9d403
gh-70647: Better promote how to safely parse yearless dates in dateti…
gpshead Dec 21, 2025
c45cee4
remove date.strptime mentions from 3.14
gpshead Dec 21, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
Prev Previous commit
remove date.strptime mentions from 3.14
  • Loading branch information
@gpshead
gpshead committed Dec 21, 2025
commit c45cee48e82a525838bfb03072d36764a450c4db
12 changes: 6 additions & 6 deletions Doc/library/datetime.rst
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2587,15 +2587,15 @@ Broadly speaking, ``d.strftime(fmt)`` acts like the :mod:`time` module's
``time.strftime(fmt, d.timetuple())`` although not all objects support a
:meth:`~date.timetuple` method.

For the :meth:`.datetime.strptime` and :meth:`.date.strptime` class methods,
the default value is ``1900-01-01T00:00:00.000``: any components not specified
in the format string will be pulled from the default value.
For the :meth:`.datetime.strptime` class method, the default value is
``1900-01-01T00:00:00.000``: any components not specified in the format string
will be pulled from the default value.

.. note::
When used to parse partial dates lacking a year, :meth:`.datetime.strptime`
and :meth:`.date.strptime` will raise when encountering February 29 because
the default year of 1900 is *not* a leap year. Always add a default leap
year to partial date strings before parsing.
will raise when encountering February 29 because the default year of 1900 is
*not* a leap year. Always add a default leap year to partial date strings
before parsing.


.. testsetup::
Expand Down
Loading