fi = open('../VOCdevkit/VOC2010/33_context/train.txt', 'r') fo = open('voc12/list/train.txt', 'w') fo2 = open('voc12/list/train_aug.txt', 'w') for line in fi: string_ = str(line[:-1]) fo.write('/JPEGImages/' + string_ + '.jpg /SegmentationClassAug/' + string_ +'.png\n') fo2.write('/JPEGImages/' + string_ + '.jpg /SegmentationClassAug/' + string_ +'.png\n') fi.close() fo.close() fo2.close()