[Python-3000] [Python-Dev] Filename as byte string in python 2.6 or 3.0?

["Martin v. Löwis"]

> $ ./python -c "import sys; print(sys.argv)" "$(echo -e 'filename\x90\x90')"
> Could not convert argument 3 to str
> $ ./python -c "import os; print(os.environ['DUMMY'])"
> Traceback (most recent call last):
>   File "<string>", line 1, in <module>
>   File "/home/ncoghlan/devel/py3k/Lib/os.py", line 389, in __getitem__
>     return self.data[self.keymap(key)]
> KeyError: 'DUMMY'
> 
> (Is there a bug report for these yet?)
> 
> I'm also starting to wonder if allowing mixed types might be the way to
> go for these interfaces - leaving the bytes objects in place if the
> Unicode decode operation fails.

While I can sympathize with people having non-ASCII file names on their
disks, I can't sympathize with this example. Normal users just don't
put \x90 into their command lines, and those who do deserve the error
message they get.

Regards,
Martin