import sys if len(sys.argv)<3: print("provide a file path and list of duplicates") exit() with open(sys.argv[2]) as l: numbersS=l.read().splitlines() numbers=[] for i in numbersS: numbers.append(int(i)) with open(sys.argv[1]) as f: lines=f.read().splitlines() for i in numbers: curLine=i-1 while lines[curLine]: lines[curLine]=str() curLine+=1 for i in lines: print(i)