[Python-Dev] [Python-3000] New proposition for Python3 bytes filename issue

Steven D'Aprano steve at pearwood.info
Tue Sep 30 16:53:10 CEST 2008

On Tue, 30 Sep 2008 11:50:10 pm Guido van Rossum wrote:

> > To avoid silent skipping, is it possible to drop 'unreadable'
> > names, issue a warning (instead of exception), and continue to
> > completion? "Warning: unreadable filename skipped; see
> > PyWiki/UnreadableFilenames"
> That would be annoying as hell in most cases.

Doesn't the warning module default to only displaying the warning once 
per session? I don't see that it would be annoying as hell to be 
notified once per session that an error has occurred.

What I'd find annoying as hell would be something like this:

$ ls . | wc -l
$ python
>>> import os
>>> len(os.listdir('.')

Give me a nice clear error, or even a warning. Don't let the error pass 
silently, unless I explicitly silence it.

> I consider the dropping of unreadable names similar to the
> suppression of "hidden" files by various operating systems.

With the exception of '.' and '..', I consider "hidden" files to be a 
serious design mistake, but at least most operating systems give the 
user a way to easily see all such hidden files if you ask.

(Almost all. Windows has "superhidden" files that remain hidden even 
when the user asks to see hidden files, all the better to hide malware. 
But that's a rant for another list.)



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