File1: sha1.py

File2: sha1.bat

------------------

File1: sha1.py

import hashlib

import os,sys

def CalcSha1(filepath):

    with open(filepath,'rb') as f:

        sha1obj = hashlib.sha1();

        print '>',

        while(True):

            data = f.read(20971520)  #20M

            print '.',

            if (data == ''):

                break

            sha1obj.update(data)

        hash = sha1obj.hexdigest()

        print ' END'

        return hash.upper()

if __name__ == "__main__":

    if len(sys.argv)!=2 :

        print("Usage: \n\tsha1 filename ")

        exit(1)

    hashfile = sys.argv[1]

    if not os.path.exists(hashfile):

        hashfile = os.path.join(os.path.dirname(__file__),hashfile)

        if not os.path.exists(hashfile):

            print("cannot found file")

            exit(1)

    sha1 = CalcSha1(hashfile)

    print 'SHA1: ', sha1

File2: sha1.bat

@python %~dp0sha1.py %*