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Tue May 26 23:12:49 CEST 2015 · http://mail.python.org/pipermail/python-dev/2015-May/140198.html

On Tue, 26 May 2015 08:20:01 +0200, Victor Stinner <victor.stinner at gmail.com> wrote:
> What is wrong with "except:" in this specific case?

Nothing is wrong with it from a technical standpoint.  However, if we
use 'except BaseException' that makes it clear that someone has thought
about it and decided that all exceptions should be caught, as opposed to
it being legacy code or a programming mistake.

> > On 2015-05-26 12:26 AM, Terry Reedy wrote:
> >
> >>> +    try:
> >>> +        encoding, lines = detect_encoding(buffer.readline)
> >>> +        buffer.seek(0)
> >>> +        text = TextIOWrapper(buffer, encoding, line_buffering=True)
> >>> +        text.mode = 'r'
> >>> +        return text
> >>> +    except:
> >>> +        buffer.close()
> >>> +        raise
> >>>
> >>
> >> Please do not add bare 'except:'.  If you mean 'except BaseException:',
> >> say so.

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tokenize.open() now closes the temporary binary file on error to