pygnomevfs get_local_path_from_uri replacement

[Chris Rebert]

On Sat, Dec 22, 2012 at 12:57 AM, Daniel Fetchinson
<fetchinson at googlemail.com> wrote:
> Hi folks, I realize this is slightly off topic and maybe belongs to a
> gnome email list but it's nevertheless python:
>
> I use an old python program that was written for gnome 2 and gtk 2 and
> uses the function get_local_path_from_uri. More specifically it uses
> gnomevfs.get_local_path_from_uri.
>
> Now with gnome 3 the module pygnomevfs does not exist anymore and
> after checking the source for pygnomevfs it turns out it's written in
> C using all the header files and stuff from gnome 2. So I can't just
> lift it from the source. I was hoping it's pure python in which case I
> could have simply lifted it.
>
> Does anyone know what a good replacement for get_local_path_from_uri
> is? Is there a gtk/gnome/etc related python package that contains it
> which would work with gnome 3? Or a totally gnome-independent python
> implementation?

The commit https://mail.gnome.org/archives/commits-list/2009-May/msg05733.html
suggests that get_local_path_from_uri() might have been defined as
(taking slight liberties):
    gnome_vfs_unescape_string(remove_host_from_uri(uri))
Assuming these functions do the "obvious" things implied by their
names (you can probably chase down the Gnome VFS source or docs to
check; I don't care enough to bother), given a general URI
"protocol://host/path", it presumably returns either
"protocol:///path" (`protocol:` likely being "file:" in this case) or
"/path", in either case with `path` having been un-percent-escaped.
The latter transform can be done using
http://docs.python.org/2/library/urllib.html#urllib.unquote

Alternately, you might call the Gnome VFS C API directly via
http://docs.python.org/2/library/ctypes.html

Merry Solstice,
Chris