On Fri, Sep 11, 2009 at 3:12 PM, Alan G Isaac <alan.is...@gmail.com> wrote:
> Michael Foord came up with a much simpler
> illustration. With Python 2.6::
>
> >>> try:
> ... open('flooble')
> ... except Exception as e:
> ... pass
> ...
> >>> e
> IOError(2, 'No such file or directory')
> >>> unicode(e)
> u"(2, 'No such file or directory')"
> >>> str(e)
> "[Errno 2] No such file or directory: 'flooble'"
> >>> u'%s' % e
> u"(2, 'No such file or directory')"
> >>> '%s' % e
> "[Errno 2] No such file or directory: 'flooble'"
Sounds like IOError or one of its ancestors defines both __str__() and
__unicode__ () special methods but has them produce different output.
Cheers,
Chris
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