ZLIB decompressing only portion of data
mkx at excite.com
mkx at excite.com
Wed Feb 21 11:24:26 EST 2001
On Wed, 21 Feb 2001 06:23:14 GMT, "Fredrik Lundh"
<fredrik at pythonware.com> wrote:
>str = dco.decompress(file.read(16384))
>str = str + dco.flush() # get rest of data
This methodology still only returns the first segment of uncompressed
data.
So far, only the following works, returning about 12K of uncompressed
data, before returning an Error -3 while decompressing: unknown
compression method.
###
import zlib
fd=open('d:/temp/zlb/snippets.zlb', 'rb' )
of=open('d:/temp/zlb/snippets.dat','w')
dco = zlib.decompressobj()
str = dco.decompress(fd.read(16384))
of.write(str)
while dco.unused_data:
ustr = dco.unused_data
dco=zlib.decompressobj() # Having to recreate the dco object
# each time, otherwise further data
# not returned
str=dco.decompress(ustr)
of.write(str)
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