Re: [Datetime-SIG] Calendar vs timespan calculations...
On 07/30/2015 06:04 PM, Tim Peters wrote:
I like Alexander's new tzstrict (subclass of tzinfo) idea best so far. Flags invariably create nasty problems, like:
It's growing on me, too. The flag idea was per-instance, though, not global (and not changeable once an instance was created), so most of those horrible nightmare situations wouldn't happen. And, yeah, I remember that Guido doesn't like flags. ;) -- ~Ethan~
On Thu, Jul 30, 2015 at 6:09 PM, Ethan Furman
On 07/30/2015 06:04 PM, Tim Peters wrote:
I like Alexander's new tzstrict (subclass of tzinfo) idea best so far.
hmm -- somehow the tz object really feels like the wrong place for it. If you don't like flags, why not a datetime subclass? -- is that any more ugly than another tzinfo subclass? We should also think about how to handle the Period arithmetic case -- would that be a special kind of tzinfo object? I would think not -- after all, you'd certainly need a different kind of timedelta object. It would be nice not to have too many new objects. -Chris
Flags invariably create nasty problems, like:
It's growing on me, too.
The flag idea was per-instance, though, not global (and not changeable once an instance was created), so most of those horrible nightmare situations wouldn't happen. And, yeah, I remember that Guido doesn't like flags. ;)
-- ~Ethan~
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Ethan Furman