Xpress9-python
Xpress9-python is a lightweight wrapper for the Xpress9 compression library by Microsoft. This project provides a C extension along with a Cython wrapper, enabling efficient compression and decompression in Python.
Features
- Compression: Compress data using the Xpress9 encoder.
- Decompression: Decompress data using the Xpress9 decoder.
- High Performance: Optimized with compiler flags and optional OpenMP for multi-threading.
- Cross-Platform: Supports Windows, macOS, and Linux.
Requirements
- Python 3.8 or higher
- Cython (>= 0.29.0)
- setuptools (>= 42)
- wheel
- A C compiler (e.g., gcc, clang, or MSVC)
- OpenMP (optional, for enhanced performance on Linux/Windows)
Installation
Clone the repository and build the extension:
git clone https://github.com/Hugoberry/xpress9-python
cd xpress9
python setup.py build_ext --inplace
Alternatively, if the package is available on PyPI, install it with pip:
pip install xpress9
Usage
Below is a simple example demonstrating how to initialize the library, compress data, and then decompress it:
from xpress9 import Xpress9
# Initialize the wrapper
x = Xpress9()
print("Xpress9 initialized successfully!")
# Create some sample, compressible data (e.g., repetitive string)
original_data = b"Hello, world! " * 64
print(f"Original data size: {len(original_data)} bytes")
# Specify the maximum compressed size (adjust as needed)
max_compressed_size = len(original_data)
# Compress the data
compressed_data = x.compress(original_data, max_compressed_size)
print(f"Compressed data size: {len(compressed_data)} bytes")
# Decompress the data back to its original size
decompressed_data = x.decompress(compressed_data, len(original_data))
print(f"Decompressed data size: {len(decompressed_data)} bytes")
# Verify the integrity of the round-trip
if decompressed_data == original_data:
print("Data round-trip successful!")
else:
print("Data mismatch!")
License
This project is licensed under the MIT License.
Acknowledgments
- The underlying Xpress9 compression library is developed by Microsoft and licensed under the MIT License.
1 maintainer
Metadata
1 maintainer
Release files for xpress9 0.3.9
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
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|---|---|---|---|
| xpress9-0.3.9.tar.gz | 118.4 kB | Details |
Built distributions (wheels)
Total release size: 6.7 MB
Release files / xpress9-0.3.9.tar.gz
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