def expire_objects():
''' Remove all obsolete objects from the file systems. Untested. '''
objects = sorted(FSExpirations.expired(), key=lambda x:x.module)
fs = None
module = None
for o in objects:
if module != o.module:
module = o.module
fs = get_filesystem(module)
if fs.exists(o.filename):
fs.remove(o.filename)
o.delete()
