new to python, help please !!
Tim Chase
python.list at tim.thechases.com
Thu Nov 12 06:48:12 EST 2015
On 2015-11-12 08:21, Marko Rauhamaa wrote:
> And if you really wanted to compare two files that are known to
> contain MD5 checksums, the simplest way is:
>
> with open('f1.md5') as f1, open('f2.md5') as f2:
> if f1.read() == f2.read():
> ...
> else:
> ...
Though that suffers if the files are large. Might try
CHUNK_SIZE = 4 * 1024 # read 4k chunks
# chunk_offset = 0
with open('f1.md5') as f1, open('f2.md5') as f2:
while True:
c1 = f1.read(CHUNK_SIZE)
c2 = f2.read(CHUNK_SIZE)
if c1 or c2:
# chunk_offset += 1
if c1 != c2:
not_the_same(c1, c2)
# not_the_same(chunk_offset * CHUNK_SIZE, c1, c2)
break
else: # EOF
the_same()
break
which should perform better if the files are huge
-tkc
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