如何用python生成文件的md5 checksum值
unix 下md5sum的python版本pymd5sum.py
#!/usr/bin/python
#encoding=utf-8
import io
import sys
import hashlib
import string
def printUsage():
print ('''Usage: pymd5sum.py <filename>''')
def main():
if(sys.argv.__len__()==2):
#print(sys.argv)
m = hashlib.md5()
file = io.FileIO(sys.argv,'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)
#dest = io.FileIO(sys.argv+".CHECKSUM.md5",'w')
#dest.write(md5value)
#dest.close()
else:
printUsage()
main()
参考:
http://en.wikipedia.org/wiki/Checksum
http://en.wikipedia.org/wiki/MD5
页:
[1]