Not so hurry. As for pytz footprint, it's ~600kB in size and can be lightning fast if combined with caching in memcache (caching of tzinfo? why not...). Combine this with Babel and you'll get everything you'd want to do l10n.
On 10 Mar, 20:21, mawcs <mwilliam...@williamsonclan.us> wrote: > So, I got some help from StackOverflow on this one. > > Careful use of the dateutil library seemed to solve my problem. It is > fairly robust and a much smaller footprint from PyTZ. > > On Mar 10, 11:06 am, mawcs <mwilliam...@williamsonclan.us> wrote: > > > (I am new to Python and Google App Engine, please forgive me if my > > questions seem basic). > > > I'm having a helluva time trying to manage multiple user timezones in > > my Google App Engine application. > > > Here are my constraints: > > > 1. If a user enters the time on an input, it will be local time > > (including DST, when appropriate). > > 2. If a user does not enter the time, the system must enter it for > > them in their local time (including DST, when appropriate). > > 3. When the date and time are displayed to the user, it must be in > > their local time (including DST, when appropriate) > > > I understand that time will be internally stored as UTC with a tzinfo > > object and that the App Engine will store the Models with UTC time. > > > I previously thought I had this all worked out by asking the user to > > specify their time zone in their preferences. Then, I would simply > > load their preferences and add that tzinfo to any datetime objects in > > reference to that user. > > > However, our recent daylight saving time broke it. It turns out that I > > had not correctly implemented the dst() in my tzinfo objects. As I > > understand it, I must determine if DST is currently on, and if so, > > return the correct offset for the tzinfo. > > > The problem is, I have no idea how to determine if the timezone's > > daylight time is current or not. Am I missing something obvious? > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appengine@googlegroups.com To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~----------~----~----~----~------~----~------~--~---
