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xpress8-python

Cython bindings for Microsoft's Xpress8 compression library, as shipped in the Extensible Storage Engine (ESE) source tree. Released under the MIT License.

This is a sibling of xpress9-python. Xpress8 is the variant used by Power BI's .pbix file format and by various Windows-internal data stores; it is not wire-compatible with Xpress9.

Install

pip install xpress8

Or from source:

pip install -e .

Usage

from xpress8 import Xpress8

x = Xpress8()                       # max_original_size=65536, level=9

# Single-buffer round trip
compressed = x.compress(b"hello world " * 64)
restored   = x.decompress(compressed, len(b"hello world " * 64))

# PBIX-style chunked stream: each chunk has a 4-byte LE header
# (uncompressed_size: u16, compressed_size: u16).
plain = x.decompress_chunked(chunked_blob)

Layout

xpress8.pyx              Cython wrapper class
xpress8.pxd              C declarations
src/Xpress8Wrapper.c     thin C shim over the ESE stream API
src/xencode.c            vendored from ESE _xpress
src/xdecode.c            vendored from ESE _xpress
src/xencode.i            vendored
src/xdecode.i            vendored
include/Xpress8Wrapper.h shim API
include/xpress.h         vendored
include/xprs.h           vendored
include/xpress_compat.h  small portability header for non-MSVC builds

License

MIT. The vendored sources retain their original Microsoft copyright headers.

Metadata

Release files for xpress8 0.1.1

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for xpress8 0.1.1
File Size Uploaded
xpress8-0.1.1.tar.gz 201.2 kB Details

Built distributions (wheels)

Table of built distributions (wheels) for xpress8 0.1.1
File
xpress8-0.1.1-cp314-cp314-win_amd64.whl CPython 3.14 CPython 3.14 Windows x86-64 Details
xpress8-0.1.1-cp314-cp314-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl CPython 3.14 CPython 3.14 Linux glibc 2.17+ x86-64, Linux glibc 2.28+ x86-64 Details
xpress8-0.1.1-cp314-cp314-manylinux2014_aarch64.manylinux_2_17_aarch64.manylinux_2_28_aarch64.whl CPython 3.14 CPython 3.14 Linux glibc 2.17+ ARM64, Linux glibc 2.28+ ARM64 Details
xpress8-0.1.1-cp314-cp314-macosx_11_0_universal2.whl CPython 3.14 CPython 3.14 macOS 11.0+ universal2 (ARM64, x86-64) Details
xpress8-0.1.1-cp313-cp313-win_amd64.whl CPython 3.13 CPython 3.13 Windows x86-64 Details
xpress8-0.1.1-cp313-cp313-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl CPython 3.13 CPython 3.13 Linux glibc 2.17+ x86-64, Linux glibc 2.28+ x86-64 Details
xpress8-0.1.1-cp313-cp313-manylinux2014_aarch64.manylinux_2_17_aarch64.manylinux_2_28_aarch64.whl CPython 3.13 CPython 3.13 Linux glibc 2.17+ ARM64, Linux glibc 2.28+ ARM64 Details
xpress8-0.1.1-cp313-cp313-macosx_11_0_universal2.whl CPython 3.13 CPython 3.13 macOS 11.0+ universal2 (ARM64, x86-64) Details
xpress8-0.1.1-cp312-cp312-win_amd64.whl CPython 3.12 CPython 3.12 Windows x86-64 Details
xpress8-0.1.1-cp312-cp312-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl CPython 3.12 CPython 3.12 Linux glibc 2.17+ x86-64, Linux glibc 2.28+ x86-64 Details
xpress8-0.1.1-cp312-cp312-manylinux2014_aarch64.manylinux_2_17_aarch64.manylinux_2_28_aarch64.whl CPython 3.12 CPython 3.12 Linux glibc 2.17+ ARM64, Linux glibc 2.28+ ARM64 Details
xpress8-0.1.1-cp312-cp312-macosx_11_0_universal2.whl CPython 3.12 CPython 3.12 macOS 11.0+ universal2 (ARM64, x86-64) Details
xpress8-0.1.1-cp311-cp311-win_amd64.whl CPython 3.11 CPython 3.11 Windows x86-64 Details
xpress8-0.1.1-cp311-cp311-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl CPython 3.11 CPython 3.11 Linux glibc 2.17+ x86-64, Linux glibc 2.28+ x86-64 Details
xpress8-0.1.1-cp311-cp311-manylinux2014_aarch64.manylinux_2_17_aarch64.manylinux_2_28_aarch64.whl CPython 3.11 CPython 3.11 Linux glibc 2.17+ ARM64, Linux glibc 2.28+ ARM64 Details
xpress8-0.1.1-cp311-cp311-macosx_11_0_universal2.whl CPython 3.11 CPython 3.11 macOS 11.0+ universal2 (ARM64, x86-64) Details
xpress8-0.1.1-cp310-cp310-win_amd64.whl CPython 3.10 CPython 3.10 Windows x86-64 Details
xpress8-0.1.1-cp310-cp310-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl CPython 3.10 CPython 3.10 Linux glibc 2.17+ x86-64, Linux glibc 2.28+ x86-64 Details
xpress8-0.1.1-cp310-cp310-manylinux2014_aarch64.manylinux_2_17_aarch64.manylinux_2_28_aarch64.whl CPython 3.10 CPython 3.10 Linux glibc 2.17+ ARM64, Linux glibc 2.28+ ARM64 Details
xpress8-0.1.1-cp310-cp310-macosx_11_0_universal2.whl CPython 3.10 CPython 3.10 macOS 11.0+ universal2 (ARM64, x86-64) Details
xpress8-0.1.1-cp39-cp39-win_amd64.whl CPython 3.9 CPython 3.9 Windows x86-64 Details
xpress8-0.1.1-cp39-cp39-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl CPython 3.9 CPython 3.9 Linux glibc 2.17+ x86-64, Linux glibc 2.28+ x86-64 Details
xpress8-0.1.1-cp39-cp39-manylinux2014_aarch64.manylinux_2_17_aarch64.manylinux_2_28_aarch64.whl CPython 3.9 CPython 3.9 Linux glibc 2.17+ ARM64, Linux glibc 2.28+ ARM64 Details
xpress8-0.1.1-cp39-cp39-macosx_11_0_universal2.whl CPython 3.9 CPython 3.9 macOS 11.0+ universal2 (ARM64, x86-64) Details

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