Python file MD5 SHA1 checksum calculation

#coding: GBK

#md5SHA1 file Check value calculation

# How to use: python file . PY Validating Files

Import Hashlib

Import Sys

Import OS

defmd5_sum (filename): # Check Value Method

fd=open (filename, "RB") # Open File

Fd.seek (0) # move the file hit tag to Offset the location

line=fd.readline () # read the first line of the file into Line

#md5 Check value calculation

MD5=HASHLIB.MD5 ()

Md5.update (line)

#SHA1 Check value calculation

SHA1=HASHLIB.SHA1 ()

Sha1.update (line)

While line : # Looping through Files

Line=fd.readline ()

Md5.update (line)

Sha1.update (line)

fmd5=md5.hexdigest () # Generating Files MD5 Checksum value

fsha1=sha1.hexdigest () # Generating Files SHA1 Checksum value

FSUM=[FMD5,FSHA1]

Fd.close ()

Return fsum

defm_help (): # Program Help Methods

St_help= ""

****************************************

* * MD5 SHA1 Verifying use Help                

**  Input Format python md5.py file

* * Example:python md5.py D:/1/1.txt

‘‘‘

Print St_help

if __name__ = = "__main__":

Try

Filename=sys.argv[1] # Get input value

if filename== '--help ' orfilename== ': # go to the Help menu

M_help ()

elif os.path.isfile (filename): # go to File check menu

Fmd5=md5_sum (filename)

print ' File: {} '. Format (filename)

print ' MD5: {} '. Format (fmd5[0])

print ' SHA1: {} '. Format (fmd5[1])

Else: # go to the error menu

Er= ""

========== Input Error ===================== ""

Print ER

M_help ()

Except Exception:

M_help ()

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Python file MD5 SHA1 checksum calculation