Md5 encryption method for python files,

Md5 encryption method for python files,

This document describes the md5 encryption method for python files. We will share this with you for your reference. The details are as follows:

Simple mode:

From hashlib import md5def md5_file (name): m = md5 () a_file = open (name, 'rb') # Read File Content in binary format m. update (a_file.read () a_file.close () return m. hexdigest () if _ main _ = '_ init _': print md5_file ('d:/test.txt ')

Faster speed of large files

#!/usr/bin/python#encoding=utf-8import ioimport sysimport hashlibimport stringdef printUsage():  print ('''''Usage: [python] pymd5sum.py <filename>''')def main():  if(sys.argv.__len__()==2):    #print(sys.argv[1])    m = hashlib.md5()    file = io.FileIO(sys.argv[1],'r')    bytes = file.read(1024)    while(bytes != b''):      m.update(bytes)      bytes = file.read(1024)    file.close()    #md5value = ""    md5value = m.hexdigest()    print(md5value+"\t"+sys.argv[1])    #dest = io.FileIO(sys.argv[1]+".CHECKSUM.md5",'w')    #dest.write(md5value)    #dest.close()  else:    printUsage()main()

I hope this article will help you with Python programming.

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