Finding file icon given a MIME type using GTK

Is there a way to find out which icon to use for a given MIME type, using GTK/pygtk开发者_Python百科?

I know about gio.File(filename).query_info("standard::icon").get_icon(), but I need to find the icon without having to read the file.

Try gio.content_type_get_icon(). E.g.:

>>> gio.content_type_get_icon ('text/python')
<gio.ThemedIcon at 0xb7d0f734: text-python, gnome-mime-text-python, text-x-generic>