[docs] [issue12716] Reorganize os docs for files/dirs/fds

[Benjamin Peterson]

Benjamin Peterson <benjamin at python.org> added the comment:

Also, symbolic constants should be close to the functions they are used in. For example, open() flags shouldn't be in their own section.

----------

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue12716>
_______________________________________