for pakk in cps.getloop({'BOTSID':'40'},{'BOTSID':'50'}): verpakking = verzendregel.putloop({'BOTSID':'CPS'},{'BOTSID':'PAC'}) for line in pakk.getloop({'BOTSID':'50'},{'BOTSID':'60'}): #so this is nested 'under' pakk loop regel = verzendregel.putloop({'BOTSID':'CPS'},{'BOTSID':'LIN'})