lazygal /

#!/usr/bin/env python

import sys

from gi.repository import GExiv2

fn = sys.argv[1]
comment = sys.argv[2]

im = GExiv2.Metadata(fn.decode(sys.getfilesystemencoding()))

# Assume comment is in utf-8, more encoding processing example using
# sys.stdin.encoding and example processing in lazygal/
im['Exif.Photo.UserComment'] = comment
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