zlib gzip解压缩python

Question

my question is possible to extract a compressed files (gzip deflate) http compression with php or python or bash ?

i test this

import zlib

str_object1 = open('test.png', 'rb').read()
str_object2 = zlib.decompress(str_object1)
f = open('my_recovered_log_file', 'wb')
f.write(str_object2)
f.close()

and a get this result

File "testgz", line 4, in <module>
    str_object2 = zlib.decompress(str_object1)
zlib.error: Error -3 while decompressing data: incorrect header check

ty

Answer 1

Although zlib uses the same mechanisms to compress/decompress as gzip, they use different headers as their checksums.

Python's zlib can uncompress gzipped files, but Python provides a convenience library gzip for this purpose.