Deflate with urllib2...
Sam
samslists at gmail.com
Tue Sep 16 20:58:31 EDT 2008
Gabriel, et al.
It's hard to find a web site that uses deflate these days.
Luckily, slashdot to the rescue.
I even wrote a test script.
If someone can tell me what's wrong that would be great.
Here's what I get when I run it:
Data is compressed using deflate. Length is: 107160
Traceback (most recent call last):
File "my_deflate_test.py", line 19, in <module>
data = zlib.decompress(data)
zlib.error: Error -3 while decompressing data: incorrect header check
And here's my test script:
#!/usr/bin/env python
import urllib2
import zlib
opener = urllib2.build_opener()
opener.addheaders = [('Accept-encoding', 'deflate')]
stream = opener.open('http://www.slashdot.org')
data = stream.read()
encoded = stream.headers.get('Content-Encoding')
if encoded == 'deflate':
print "Data is compressed using deflate. Length is: ",
str(len(data))
data = zlib.decompress(data)
print "After uncompressing, length is: ", str(len(data))
else:
print "Data is not deflated."
On Sep 10, 12:50 am, "Gabriel Genellina" <gagsl-... at yahoo.com.ar>
wrote:
> En Tue, 09 Sep 2008 16:38:54 -0300, Sam <samsli... at gmail.com> escribió:
>
> > Un-deflating doesn't work. I get "zlib.error: Error -3 while
> > decompressing data: incorrect header check"
>
> zlib.decompress should work - can you provide a site that usesdeflateto
> test?
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