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  • python-tz and the timezone saga

    From Alastair McKinstry@21:1/5 to All on Thu Sep 30 11:00:02 2021
    Dear Colleagues

    Some time ago (2017) I took responsibility for python-tz (now within the
    python team).

    This essentially wraps timezone and adds a few helper functions, but it
    does so taking the original data from a vendored copy of zoneinfo, not
    the standard copy on the system, which it pickles into the python modules.

    From the timezone "forking saga" (https://lwn.net/Articles/870478/) it
    looks like this can lead to divergences of output wrt tzdata; that at
    least it needs to build against the "Offical Debian" tzdata and be
    tracked with it (including backports).

    Are any other packages in the same situation ? What will Debian be doing
    wrt Timezone  data ?

    Best regards

    Alastair

    --
    Alastair McKinstry, <alastair@sceal.ie>, <mckinstry@debian.org>, https://diaspora.sceal.ie/u/amckinstry
    Misentropy: doubting that the Universe is becoming more disordered.

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  • From Daniel Baumann@21:1/5 to Alastair McKinstry on Thu Sep 30 19:10:01 2021
    On 9/30/21 10:50, Alastair McKinstry wrote:
    Are any other packages in the same situation ?

    In pytzdata, I've removed the embedded copy in order to use the system
    copy (= tzdata) of the zoneinfo files.

    Regards,
    Daniel

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  • From Alastair McKinstry@21:1/5 to All on Sun Oct 3 17:40:01 2021
    On 30/09/2021, 18:00, "Daniel Baumann" <daniel.baumann@progress-linux.org> wrote:

    On 9/30/21 10:50, Alastair McKinstry wrote:
    > Are any other packages in the same situation ?

    In pytzdata, I've removed the embedded copy in order to use the system
    copy (= tzdata) of the zoneinfo files.

    Sensible, I think.

    There is an updated python-tz (pytz) today - 2021.3 ; I've adapted the build to use the system copy (tzdata)

    Regards,
    Daniel

    Regards
    Alastair

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