1 import hashlib 2 import os,sys 3  4 def CalcSha1(filepath): 5     with open(filepath,‘rb‘) as f: 6         sha1obj = hashlib.sha1() 7         sha1obj.update(f.read()) 8         hash = sha1obj.hexdigest() 9         print(hash)10         return hash11 12 def CalcMD5(filepath):13     with open(filepath,‘rb‘) as f:14         md5obj = hashlib.md5()15         md5obj.update(f.read())16         hash = md5obj.hexdigest()17         print(hash)18         return hash19 20 if __name__ == "__main__":21     if len(sys.argv)==2 :22         hashfile = sys.argv[1]23         if not os.path.exists(hashfile):24             hashfile = os.path.join(os.path.dirname(__file__),hashfile)25             if not os.path.exists(hashfile):26                 print("cannot found file")27             else28             CalcMD5(hashfile)29     else:30         CalcMD5(hashfile)31         #raw_input("pause")32 else:33     print("no filename")