Module _Gz

Inheritance graph

Description: Low-level interface to zlib.
Note: You typically do not want to access this module directly. Use the Gz module instead.
See also: Gz

Constant DEFAULT_STRATEGY: constant _Gz.DEFAULT_STRATEGY
Description: The default strategy as selected in the zlib library.

Constant FILTERED: constant _Gz.FILTERED
Description: This strategy is intented for data created by a filter or predictor and will put more emphasis on huffman encoding and less on LZ string matching. This is between DEFAULT_STRATEGY and HUFFMAN_ONLY.

Constant FIXED: constant _Gz.FIXED
Description: In this mode dynamic huffman codes are disabled, allowing for a simpler decoder for special applications. This mode is not available in all zlib versions.

Constant HUFFMAN_ONLY: constant _Gz.HUFFMAN_ONLY
Description: This strategy will turn of string matching completely, only doing huffman encoding. Window size doesn't matter in this mode and the data can be decompressed with a zero size window.

Constant RLE: constant _Gz.RLE
Description: This strategy is even closer to the HUFFMAN_ONLY in that it only looks at the latest byte in the window, i.e. a window size of 1 byte is sufficient for decompression. This mode is not available in all zlib versions.