OpenImageIO/oiio — pull request #468 by lgritz (2012-11-16 07:22:24+00:00)
Title: Add "extension_list" attribute

Just like getattribute("format_list") returns a comma-separated list of formats, this new "extension_list" attribute, when retrieves, lists all formats and for each format every extension that is presumed to correspond to the format. For example:

"tiff:tif;jpeg:jpg,jpeg;openexr:exr"

This is for you, @slooper