Author pitrou
Recipients docs@python, ezio.melotti,, pitrou, r.david.murray, rhettinger
Date 2013-10-23.14:09:37
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> Perhaps it would be better to say that "the argument may be any
> object with a __len__, such as the commonly used Python sequence and
> container types str, bytes, tuple, list, dict, and set".  After all,
> there are other built in types it works on as well: bytearray,
> frozenset, memoryview.

__len__ is an implementation detail for experts. Beginners don't need
to know about __len__ in order to understand querying the length of
a container. Similarly, they don't need to know about ABCs to understand,
intuitively, what a container is ;-)
Date User Action Args
2013-10-23 14:09:37pitrousetrecipients: + pitrou, rhettinger, ezio.melotti, r.david.murray, docs@python,
2013-10-23 14:09:37pitroulinkissue19362 messages
2013-10-23 14:09:37pitroucreate