schizophrenic view of what is white space

[Robin Becker]

Is python of two minds about what is white space. I notice that split, strip
seem to regard u'\xa0' (NO-BREAK SPACE) as white, but that code is not matched
by the \s pattern. If this difference is intended can we rely on it continuing?

>>> u'a b'.split() [u'a', u'b']
>>> u'a\xa0b'.split() [u'a', u'b']
>>> re.compile(r'\s').search(u'a b')

>>> re.compile(r'\s').search(u'a\xa0b')
>>>