Message248756
> Named tuples are not a type, they are a protocol. Guido has agreed that checking for _fields is an acceptable and preferred way of finding out whether something is a namedtuple.
They are, but for protocols we usually use dunder names. "_fields" is a common enough attribute name for all kinds of objects, not necessarily namedtuples.
Can we at least check if the class is a tuple subclass and then use its '_fields' for sorting?
> I can add a check to at least check the value of _fields is an iterable of strings. If it still aliases with some random use of _fields, the only consequence is that the matching field names will appear in a different order.
+1 for checking if it's an iterable of strings. |
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Date |
User |
Action |
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2015-08-18 03:29:41 | yselivanov | set | recipients:
+ yselivanov, rhettinger |
2015-08-18 03:29:41 | yselivanov | set | messageid: <1439868581.44.0.29461308449.issue24879@psf.upfronthosting.co.za> |
2015-08-18 03:29:41 | yselivanov | link | issue24879 messages |
2015-08-18 03:29:40 | yselivanov | create | |
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