FilesystemSprint/WhatSucks

What sucks at the current stdlib filesystem api?

This is some collection of what we do not like (and want to fix).

dealing with os.sep, os.path.join not easy enough, too much to type
a pathname at the upper interface should be unicode (== ucs4, not utf-8, not utf-16), so that the programmer of platform independant software does not have to deal with different filesystem encodings (e.g utf-8 on linux, utf-16(2) on win32/ntfs, ...)
- for filesystem that can't map unicode to their filename encoding for any input, we maybe need to offer some capability querying method.

os.rename - replace with something having an atomic_required flag and emulate with del/ren on win32 if not atomic_required
realPathCase -- currently platform dependant application code needed (implement it in the lib)
touch -- currently platform dependant application code needed (implement it in the lib)
chown/chmod (do nothing on platform not supporting it)