[Python-Dev] Re: [Python-checkins] python/dist/src/Lib/test test_string.py, 1.25, 1.26 (original) (raw)
Greg Ewing greg at cosc.canterbury.ac.nz
Fri Aug 27 03:32:44 CEST 2004
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Tim Peters <tim.peters at gmail.com>:
> u = u"foo" > assert u"".join([s]) is s
Well, in that example it has to fail, because the input (s) wasn't a unicode string to begin with, but u"".join() must return a unicode string.
It could be argued that joining a single-element list doesn't involve using the separator at all, so its type shouldn't matter.
It could also be argued that joining with an empty string, of whatever flavour, is equivalent to just concatenating the list elements with no separator, so again the type of the separator shouldn't matter.
Greg Ewing, Computer Science Dept, +--------------------------------------+ University of Canterbury, | A citizen of NewZealandCorp, a | Christchurch, New Zealand | wholly-owned subsidiary of USA Inc. | greg at cosc.canterbury.ac.nz +--------------------------------------+
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