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Fri Dec 5 21:05:20 CET 2008 · https://mail.python.org/pipermail/python-dev/2008-December/083961.html

Guido van Rossum wrote:
> On Fri, Dec 5, 2008 at 2:27 AM, Ulrich Eckhardt <eckhardt at satorlaser.com> wrote:
>> In 99% of all cases, using the default encoding will work and do what people
>> expect, which is why I would make this conversion automatic. In all other
>> cases, it will at least not fail silently (which would lead to garbage and
>> data loss) and allow more sophisticated applications to handle it.
> 
> I think the "always fail noisily" approach isn't the best approach.
> E.g. if I am globbing for *.py, and there's an undecodable .txt file
> in a directory, its presence shouldn't cause the glob to fail.
> 
But why should it make glob() fail?  This sounds like an implementation
detail of glob.  Here's some pseudo-code::

def glob(pattern):
    string = False
    if isinstance(pattern, str):
        string = True
        if platform == 'POSIX':
            pattern = bytes(pattern, encoding=defaultencoding)
    rawfiles = os.listdir(os.path.dirname(pattern) or pattern)
    if string and platform == 'POSIX':
        return [str(f) for f in rawfiles if match(f, pattern)]
    else:
        return rawfiles

This way the traceback occurs if anything in the result set is
undecodable.  What am I missing?

-Toshio

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[Python-Dev] Python-3.0, unicode, and os.environ