Vernon Cole wrote:
> What a nifty script! I love it!
> Here's my version. I tested using a 800 KByte image file and it runs
> in a blink. Dictionary access in Python is very fast.
> <code>
> counter = {}
>
> for bytes in open('c:\\temp\\16.jpg', "rb").read():
> try:
> counter[bytes] += 1
> except KeyError:
> counter[bytes] = 1
>
> for key in sorted(counter.keys()):
> print '%s: %d,' % (repr(key),counter[key]),
> print
> </code>
Since the size of the universe is small and known in advance, a list
would be faster yet:
counter = [0]*256
for bytes in open('c:\\temp\\16.jpg', "rb").read():
counter[ord(bytes)] += 1
for key,cnt in enumerate(counter):
print '%d: %d,' % (key,cnt),
--
Tim Roberts, [email protected]
Providenza & Boekelheide, Inc.
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