Cross platform desktop operations in Python

[riklaunim at gmail.com]

Hi

I'm looking for a cross platform (Linux/Win/Mac) solution of common
desktop operations like:
* Getting system icon theme (icons for files, folders etc.)
* Determine mimetype (better than mimetypes using mapped extension to
mime)

Under Unix/Linux there are freedesktop.org standards and pyxdg that
can do that, but it won't work for example on Windows. Are there
solutions for this, or do I have to implement a backed for every
system?