methname = raw_input("Method name: ") attrname = raw_input("Attr name: ") attrtype = raw_input("Attr type: ") o = open("Output.txt","a") for line in open("TemplateNpingOps.txt"): line = line.replace("ATTRNAME",attrname) line = line.replace("METHNAME",methname) line = line.replace("TYPE",attrtype) o.write(line) o.close()