[Python-Dev] PEP 410 (Decimal timestamp): the implementation is ready for a review (original) (raw)

Barry Warsaw barry at python.org
Wed Feb 15 14:48:39 CET 2012

On Feb 15, 2012, at 10:11 AM, Martin v. Löwis wrote:

I think improving datetime needs to go in two directions: a) arbitrary-precision second fractions. My motivation for proposing/supporting Decimal was that it can support arbitrary precision, unlike any of the alternatives (except for using numerator/denominator pairs). So just adding nanosecond resolution to datetime is not enough: it needs to support arbitrary decimal fractions (it doesn't need to support non-decimal fractions, IMO). b) distinction between universal time and local time. This distinction is currently blurred; there should be prominent API to determine whether a point-in-time is meant as universal time or local time. In terminology of the datetime documentation, there needs to be builtin support for "aware" (rather than "naive") UTC time, even if that's the only timezone that comes with Python.

+1

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