uproot.ZLIB

Defined in uproot.compression on line 112.

Inheritance order:

  1. uproot.compression.Compression

  2. uproot.compression._DecompressZLIB

class uproot.compression.ZLIB(level)
Parameters:

level (int, 0-9) – Compression level: 0 is uncompressed, 1 is minimally compressed, and 9 is maximally compressed.

Represents the ZLIB compression algorithm.

If ZLIB.library is "zlib" (default), Uproot uses zlib from the Python standard library.

If ZLIB.library is "isal", Uproot uses isal.isal_zlib.

compress

ZLIB.compress(data: bytes) bytes

from_code

Inherited from uproot.compression.Compression.

classmethod ZLIB.from_code(code)

Constructs a uproot.compression.Compression from a raw fCompress integer.

from_code_pair

Inherited from uproot.compression.Compression.

classmethod ZLIB.from_code_pair(algorithm, level)

Constructs a uproot.compression.Compression from a pair of integers representing algorithm and level.

code

Inherited from uproot.compression.Compression.

ZLIB.code

This uproot.compression.Compression as a raw fCompress integer.

code_pair

Inherited from uproot.compression.Compression.

ZLIB.code_pair

This uproot.compression.Compression as a 2-tuple of integers representing algorithm and level.

level

Inherited from uproot.compression.Compression.

ZLIB.level

0 is uncompressed, 1 is minimally compressed, and 9 is maximally compressed.

This value to adapted to the ISAL compression levels if that library is used. Note: with ISAL 0 is lowest compression, not uncompressed!

as such, we don’t allow 0 in isal mode for compatibility reasons.

Type:

The compression level

decompress

Inherited from uproot.compression._DecompressZLIB.

ZLIB.decompress(data: bytes, uncompressed_bytes=None) bytes