[issue5094] datetime lacks concrete tzinfo impl. for UTC
Mark Dickinson
report at bugs.python.org
Sun Jun 13 16:09:08 CEST 2010
Mark Dickinson <dickinsm at gmail.com> added the comment:
The latest patch looks good to me. I only have minor comments, in random order:
- Should the PyDateTime_TimeZone struct definition go into datetime.h, so that it's avaiable if you want to export any C-API functions later on?
- If you're not allowing subclassing, then presumably you don't need
the new_timezone / new_timezone_ex dance?
- For clarity, please consider adding parentheses in:
self = (PyDateTime_TimeZone *)type->tp_alloc(type, 0);
to make it:
self = (PyDateTime_TimeZone *)(type->tp_alloc(type, 0));
- Whitespace issues: there are a couple of tabs in the source (at around lines 810, 3388, 3390), and an overly long line (>79 characters) at around line 3365.
- Please add a brief comment before the added C functions (like new_timezone_ex) explaining their purpose.
- I wonder whether __ne__ should return the correct result (rather than returning NotImplemented) for timezone instances. I realize that it's not necessary to implement it in order for 'tz1 != tz2' to work, but it still makes me uncomfortable that it's not implemented. OTOH, I agree with the decision not to allow timezone order comparisons (though I bet they get requested at some point).
- There doesn't seem to be any mention of timezone.min or timezone.max in the docs. Is this deliberate?
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