[Python-Dev] PEP 431 Time zone support improvements (original) (raw)

Lennart Regebro regebro at gmail.com
Sat Dec 29 21:16:05 CET 2012

On Sat, Dec 29, 2012 at 8:04 PM, Antoine Pitrou <solipsis at pitrou.net> wrote:

On Sat, 29 Dec 2012 19:56:43 +0100 Lennart Regebro <regebro at gmail.com> wrote: > On Sat, Dec 29, 2012 at 7:54 PM, Lennart Regebro <regebro at gmail.com> wrote: > > > On Sat, Dec 29, 2012 at 7:38 PM, Tres Seaver <tseaver at palladion.com_ _>wrote: > > > >> - -Lots for enabling fallback by default except on platforms known not to > >> have their own database > > > > > > Well, it's the same thing really. If the platform does have a database, > > the fallback will not be used. > > Of course, there is the case of the database existing on the platform > > normally, but somebody for some reason deleting the files, but I don't > > think that case deserves an error message. > > > > I also expect that most platform distributions, such as for Ubuntu, will > > not include the fallback database, as it will never be used. I'll add > > something about that and that we need to raise an error of some sort (any > > opinions on what?) if no database is found at all. > > > > Actually I already added that, but opinions on what error to raise are > still welcome. Currently it says: > > If no database is found an UnknownTimeZoneError or subclass thereof > will > be raised with a message explaining that no zoneinfo database can be > found, > but that you can install one with the tzdata-update package.

Why should we care about that situation if we do provide a database? Distributions can decide to exclude some files from their packages, but it's their problem, not ours.

Yes, but a comprehensible error message is useful even if somebody messed up the system/configuration.

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