[Zope3-dev] mini-RFC: times and timezones

[Gary Poster]

On Feb 24, 2005, at 12:32 PM, Tim Peters wrote:

> [Tim Peters]
> ...
>>> A consideration I didn't see mentioned is that lots of work went into
>>> ensuring that datetime objects have efficient pickle representations
>>> (small size, and very fast to pickle and unpickle).  Of course this
>>> works best for naive datetimes -- pickling an aware datetime drags in
>>> all the machinery for pickling its instance of a tzinfo subclass too.
>
> [Gary Poster]
>> I am under the impression that the datetimeutils tzinfo 
>> implementations
>> are pickle-friendly as well.  That's what I was intending to use as 
>> the
>> basis of zope.i18n.utc.

<cool pickle analysis>

zope.i18n utf will be shorter than zope.app.dateutils tzinfo at the 
very least :-).

I'm hoping that a singleton (the utf tzinfo) will pickle even smaller.  
I'll get to it as soon as I can with everything else going on.

> BTW, I don't claim that pickle size should drive anything here -- I
> just wanted people to be aware that it is one of the tradeoffs
> involved.

Understood.

Thanks

Gary