[Datetime-SIG] Equality of tzinfo objects

[Alexander Belopolsky]

On Thu, Nov 3, 2016 at 2:09 PM, Paul G <paul at ganssle.io> wrote:

> I don't understand why it must be the case that something is considered an
> "inter-zone" comparison whenever `t.tzinfo is not s.tzinfo`. What is the
> objection to using `t.tzinfo != s.tzinfo` as the criterion? In general
> these will be equivalent, but using __eq__ allows time zone providers to
> determine what is considered an "inter-zone" comparison.


This was probably the case of premature optimization.  I cannot think of
any valid reason, but datetime comparisons have always compared tzinfos
using "is" rather than "==" operator.   We can probably still make a
change, but it should be implemented and thoroughly tested first.  Please
open a bug report.
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