[issue28937] str.split(): allow removing empty strings (when sep is not None)

[Matthew Barnett]

Matthew Barnett <python at mrabarnett.plus.com> added the comment:

The best way to think of it is that .split() is like .split(' '), except that it's splitting on any whitespace character instead of just ' ', and keepempty is defaulting to False instead of True.

Therefore:

    '   x y z'.split(maxsplit=1, keepempty=True) == ['', '  x y z']

because:

    '   x y z'.split(' ', maxsplit=1) == ['', '  x y z']

but:

    '   x y z'.split(maxsplit=1, keepempty=False) == ['x y z']

At least, I think that's the case!

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue28937>
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