[Python-Dev] datetime module enhancements (original) (raw)

Jon Ribbens jon+python-dev at unequivocal.co.uk
Fri Mar 9 22:36:20 CET 2007

""Martin v. Löwis"" <martin at v.loewis.de> wrote:

There are know problems comparing durations (e.g. is 30 days more or less than a month?). For time stamps, there is no issue. For calender dates, there are again problems, in particular with time zones.

Python durations (datetime.timedelta) do not support the concept of "months", so that's not an issue. The timedelta type only supports durations that are a fixed number of seconds.

I don't see what the issue with time zones would be? Surely you just convert to the same time zone and then compare?

What I don't know (because I never used it) is whether the datetime module implements time stamps. If it does (i.e. no durations, no time zones, no issues with leap seconds), then supporting a total order seems reasonable.

It supports converting from timestamps, but not to timestamps, which is the subject of a feature request I submitted the other day (1673409) ;-)

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