In the unix world, 'fc' would be like diff.
"""
Python example of checksumming files with the MD5 module.
In Python 2.5, the hashlib module would be preferable/more elegant.
"""
import md5
import string, os
r = lambda f: open(f, "r").read()
def readfile(f,strip=False): return (strip and stripper(r(f))) or r(f)
def writefile(f, data, perms=750): open(f, "w").write(data) and
os.chmod(f, perms)
def get_md5(fname):
hash = md5.new()
contents = readfile(fname)
hash.update(contents)
value = hash.digest()
return (fname, hash.hexdigest())
import glob
for f in glob.glob('*'):
print get_md5(f)
A crude way to check if two files are the same on Windows is to look
at the output of the "fc" function of cmd.exe, for example
def files_same(f1,f2):
cmnd = "fc " + f1 + " " + f2
return ("no differences" in popen(cmnd).read())
This is needlessly slow, because one can stop comparing two files
after the first difference is detected. How should one check that
files are the same in Python? The files are plain text.
--
Shane Geiger
IT Director
National Council on Economic Education
[EMAIL PROTECTED] | 402-438-8958 | http://www.ncee.net
Leading the Campaign for Economic and Financial Literacy
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org:National Council on Economic Education (NCEE)
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email;internet:[EMAIL PROTECTED]
title:IT Director
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