api = arvados.api()
filters = [['properties.responsible_person_uuid', '=', '{}'.format(old_uuid)]]
cols = util.list_all(api.collections().list, filters=filters, select=['uuid', 'properties'])
api = arvados.api()
filters = [['properties.responsible_person_uuid', '=', '{}'.format(old_uuid)]]
cols = util.list_all(api.collections().list, filters=filters, select=['uuid', 'properties'])
props = c['properties']
props['responsible_person_uuid'] = new_uuid
api.collections().update(uuid=c['uuid'], body={'properties': props}).execute()
\ No newline at end of file
props = c['properties']
props['responsible_person_uuid'] = new_uuid
api.collections().update(uuid=c['uuid'], body={'properties': props}).execute()
\ No newline at end of file