Python zlib compression and decompression string code

Source: Internet
Author: User
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Use zlib.compress to compress strings. Use Zlib.decompress to extract strings. As follows

The code is as follows Copy Code

#coding =utf-8
Import zlib

s = "Hello Word, 00000000000000000000000000000000"
Print Len (s)

c = zlib.compress (s)
Print Len (c)

D = zlib.decompress (c)
Print D


Model Code 2:

The code is as follows Copy Code

Import zlib
message = ' witch which has which witches wrist '
compressed = zlib.compress (message)
decompressed = zlib.decompress (compressed)
print ' original: ', repr (message)
print ' compressed: ', repr (compressed)
print ' decompressed: ', repr (decompressed) output original: ' Witch which has which witches, wrist watch '
Compressed: ' Xx9c+xcf,ixcep (XCFXC8X04X92X19X89XC5PV9H4X15XC8+XCA,. Q (ox04xf2x00d?x0fx89 '
decompressed: ' witch which has which witches ' wrist '

If we want to extract the string, we can compress and decompress the file using Zlib.compressobj and Zlib.decompressobj.

  code is as follows copy code

Def compress (infile, DST, level=9):
    infile = open (infile, ' RB ')
    DST = ope N (DST, ' WB ')
    compress = Zlib.compressobj (level)
    data = infile.read (1024) br>     while data:
        dst.write compress.compress (data)
        data = infile.read (1024)
    dst.write ( Compress.flush ())
Def decompress (infile, DST):
    infile = open (infile, ' RB ')
  & nbsp DST = open (DST, ' WB ')
    decompress = zlib.decompressobj ()
    data = Infile.read ( 1024)
    while data:
        dst.write ( Decompress.decompress (data)
        data = infile.read (1024)
     Dst.write (Decompress.flush ())

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