On Wed, Oct 25, 2017 at 04:32:39PM -0400, Alexander Belopolsky wrote: > On Wed, Oct 25, 2017 at 3:48 PM, Alex Walters <tritium-l...@sdamon.com> wrote: > > Why make parsing ISO time special? > > It's not the ISO format per se that is special, but parsing of str(x). > For all numeric types, int, float, complex and even > fractions.Fraction, we have a roundtrip invariant T(str(x)) == x. > Datetime types are a special kind of numbers, but they don't follow > this established pattern. This is annoying when you deal with time > series where it is common to have text files with a mix of dates, > timestamps and numbers. You can write generic code to deal with ints > and floats, but have to special-case anything time related.
Maybe I'm just being slow today, but I don't see how you can write "generic code" to convert text to int/float/complex/Fraction, but not times. The only difference is that instead of calling the type directly, you call the appropriate classmethod. What am I missing? -- Steven _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
