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gh-133125: Clarify ZipInfo.date_time attribute documentation #136082

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Aug 22, 2025
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gh-133125: Clarify ZipInfo.date_time attribute documentation #136082

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Clarify ZipInfo.date_time attribute documentation to specify source o…
KentaroJay Jun 28, 2025
fcad6c5
Fix
KentaroJay Jun 28, 2025
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Apply suggestions from code review
KentaroJay Jul 28, 2025
5afd441
Fixed spare notes into emrged note, also added explanation about local
KentaroJay Jul 28, 2025
4991490
Update zipfile.rst
KentaroJay Aug 2, 2025
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14 changes: 12 additions & 2 deletions Doc/library/zipfile.rst
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Expand Up @@ -818,7 +818,10 @@ Instances have the following methods and attributes:
.. attribute:: ZipInfo.date_time

The time and date of the last modification to the archive member. This is a
tuple of six values:
tuple of six values representing the "last [modified] file time" and "last [modified] file date"
fields from the ZIP file's central directory.

The tuple contains:

+-------+--------------------------+
| Index | Value |
Expand All @@ -838,7 +841,14 @@ Instances have the following methods and attributes:

.. note::

The ZIP file format does not support timestamps before 1980.
The ZIP format supports multiple timestamp fields in different locations
(central directory, extra fields for NTFS/UNIX systems, etc.). This attribute
specifically returns the timestamp from the central directory. The central
directory timestamp format in ZIP files does not support timestamps before
1980. While some extra field formats (such as UNIX timestamps) can represent
earlier dates, this attribute only returns the central directory timestamp.

CPython interprets this timestamp as representing local time, not UTC.


.. attribute:: ZipInfo.compress_type
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