On Wed, Oct 25, 2017, at 16:32, Alexander Belopolsky wrote: > 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.
Generic code that uses a Callable[[str], ...] instead of a type works fine with a class method. column1.parser = int column2.parser = float column3.parser = datetime.parse_iso column4.parser = json.loads It is *very slightly* more complex than a model that needs the type also for some reason and has the type pull double duty as the parser... but why do that? _______________________________________________ Python-Dev mailing list [email protected] https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com