[Datetime-SIG] IANA TZ database statistics

[Alexander Belopolsky]

> [Alex]

> This is not about wrapping IANA's tzdist.  This is about implementing PEP
> > 495 features using POSIX APIs.
> [Tim]
> Specifically which features?  Do you just mean .astimezone() treating
> a naive datetime as being in the system zone, and the absence of any
> argument implying the system zone?  Or more than just that?
>

Also, .timestamp() respecting the fold attribute and datetime.now() and
datetime.fromtimestamp() setting the fold attribute appropriately.  In all
these cases one needs to know how far the transition point is from a given
time.

>
> >> [Tim]
> >> In that case, "best" is returning what the IANA database
> >> says should be returned in all cases.
>

The database itself does not say anything about what should be returned by
various tools, but I would interpret that as "whatever zdump returns."


>
> > [Alex]

> Which version of  IANA database?

[Tim]
> If it's still relevant, the only version any user cares about:  the
> one that happens to be installed on their machine ;-)


I don't think Windows comes with any, but I know close to nothing about
Windows.
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