zlib.decompressobj(wbits=15[, zdict])
Returns a decompression object, to be used for decompressing data streams that won’t fit into memory at once.
The wbits parameter controls the size of the history buffer (or the “window size”), and what header and trailer format is expected. It has the same meaning as described for decompress().
The zdict parameter specifies a predefined compression dictionary. If provided, this must be the same dictionary as was used by the compressor that produced the