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#! /usr/bin/env python
"""Python utility to print MD5 checksums of argument files.
Works with Python 1.5.2 and later.
"""
import sys, md5
BLOCKSIZE = 1024*1024
def hexify(s):
return ("%02x"*len(s)) % tuple(map(ord, s))
def main():
args = sys.argv[1:]
if not args:
sys.stderr.write("usage: %s file ...\n" % sys.argv[0])
sys.exit(2)
for file in sys.argv[1:]:
f = open(file, "rb")
sum = md5.new()
while 1:
block = f.read(BLOCKSIZE)
if not block:
break
sum.update(block)
f.close()
print hexify(sum.digest()), file
if __name__ == "__main__":
main()
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