[Datetime-SIG] PEP-495 - Strict Invalid Time Checking

[Alexander Belopolsky]

On Tue, Aug 25, 2015 at 5:28 PM, Carl Meyer <carl at oddbird.net> wrote:
>
> My answer is "only in those same locations where the fold attribute
> would otherwise be checked in order to resolve an ambiguity."


This includes utcoffset() which is used in datetime.__eq__.  What should
__eq__ do if utcoffset() raises AmbiguousTimeError?  Unpatched, it will
propagate the exception resulting in for example x in [y, x, x, x] raising
an error whenever y happened to be fold=-1 ambiguous.  Is your code
prepared to handle  AmbiguousTimeError whenever you search for a date in a
list?  Does it check for fold != -1 before adding a date to a list?
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/datetime-sig/attachments/20150825/4ac5322d/attachment.html>