1.4 KiB
uzlib
-- zlib decompression
uzlib
python:zlib
.
This module allows to decompress binary data compressed with DEFLATE algorithm (commonly used in zlib library and gzip archiver). Compression is not yet implemented.
Functions
decompress(data, wbits=0, bufsize=0)
Return decompressed data as bytes. wbits is DEFLATE dictionary window size used during compression (8-15, the dictionary size is power of 2 of that value). Additionally, if value is positive, data is assumed to be zlib stream (with zlib header). Otherwise, if it's negative, it's assumed to be raw DEFLATE stream. bufsize parameter is for compatibility with CPython and is ignored.
Create a stream wrapper which allows
transparent decompression of compressed data in another stream.
This allows to process compressed streams with data larger than
available heap size. In addition to values described in decompress
, wbits
may take values 24..31 (16 + 8..15), meaning that input stream has gzip
header.
Difference to CPython
This class is MicroPython extension. It's included on provisional basis and may be changed considerably or removed in later versions.