On 2022-03-20 10:00, Brian Inglis wrote:
On 2021-12-21 09:06, Marco Atzeri via Cygwin-announce wrote:
Several python packages have been added to the Cygwin distribution
and at the same time the updated packages for 3.6/3./3.8
have been uploaded.
python39-pytz 2021.3-1
Suggesting that pytz should be deprecated and eventually dropped.
There is a lot of discussion on the IANA TZ mailing list about support of the
IANA TZ DB (tzdata) in languages other than C, and there has been discussion of
the official python standard library module support of tzdata, and the problems
of correctly using pytz:
https://blog.ganssle.io/articles/2018/03/pytz-fastest-footgun.html
requiring close reading and following of its limitations:
https://pypi.org/project/pytz/
https://github.com/stub42/pytz
together with it being superceded by official support of IANA TZ DB with a
standard library compiled zoneinfo module built on the datetime module:
https://peps.python.org/pep-0615/
backported to 3.6+ as the backports.zoneinfo module:
https://zoneinfo.readthedocs.io/en/latest/
https://github.com/pganssle/zoneinfo/
Update needed to 2022g/2022.7.1 as a new Mexican zone was added since
2021c/2021.3 due to Mexican changes conflicting with US practices, affecting
border towns:
https://mm.icann.org/pipermail/tz-announce/2022-November/000076.html
"The 2022g release of the tz code and data is available.
This release contains the following changes:
Briefly:
The northern edge of Chihuahua changes to US timekeeping.
...
Changes to future timestamps
In the Mexican state of Chihuahua, the border strip near the US
will change to agree with nearby US locations on 2022-11-30.
The strip's western part, represented by Ciudad Juárez, switches
from -06 all year to -07/-06 with US DST rules, like El Paso, TX.
The eastern part, represented by Ojinaga, will observe US DST next
year, like Presidio, TX. (Thanks to Heitor David Pinto.)
A new Zone America/Ciudad_Juarez splits from America/Ojinaga."
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Take care. Thanks, Brian Inglis Calgary, Alberta, Canada
La perfection est atteinte Perfection is achieved
non pas lorsqu'il n'y a plus rien à ajouter not when there is no more to add
mais lorsqu'il n'y a plus rien à retirer but when there is no more to cut
-- Antoine de Saint-Exupéry
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