Nick Coghlan added the comment:
To me, the Python-specific difference that makes this useful for us but not for
others is *precisely* the fact that the simple idiom:
x = min(seq) if seq else default
is broken for iterators that don't provide __len__ or __bool__, while the even
simpler:
x = min(seq)
is broken for the empty iterable.
However, I think we should explicitly disallow the combination of multiple
positional arguments *and* the new default argument. If you don't know the
length of the input iterable, you should *not* be using the multiple argument
form.
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Python tracker <[email protected]>
<http://bugs.python.org/issue18111>
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