Solo quiero columnas de texto de ancho fijo, pero las cadenas están todas rellenadas a la derecha, en lugar de a la izquierda.

 sys.stdout.write("%6s %50s %25s\n" % (code, name, industry))

produce

BGA                                BEGA CHEESE LIMITED   Food Beverage & Tobacco
BHP                               BHP BILLITON LIMITED                 Materials
BGL                               BIGAIR GROUP LIMITED Telecommunication Services
BGG           BLACKGOLD INTERNATIONAL HOLDINGS LIMITED                    Energy

pero queremos

BGA BEGA CHEESE LIMITED                                Food Beverage & Tobacco
BHP BHP BILLITON LIMITED                               Materials
BGL BIGAIR GROUP LIMITED                               Telecommunication Services
BGG BLACKGOLD INTERNATIONAL HOLDINGS LIMITED           Energy