105 lines
3.4 KiB
Plaintext
105 lines
3.4 KiB
Plaintext
Metadata-Version: 2.4
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Name: zopfli
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Version: 0.4.1
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Summary: Zopfli module for python
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Home-page: https://github.com/fonttools/py-zopfli
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Author: Adam DePrince
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Author-email: deprince@googlealumni.com
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Maintainer: Cosimo Lupo
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Maintainer-email: cosimo@anthrotype.com
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License: Apache-2.0
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Classifier: Intended Audience :: Developers
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Classifier: License :: OSI Approved :: Apache Software License
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Classifier: Programming Language :: Python :: 3
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Classifier: Programming Language :: Python :: 3.10
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Classifier: Programming Language :: Python :: 3.11
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Classifier: Programming Language :: Python :: 3.12
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Classifier: Programming Language :: Python :: 3.13
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Classifier: Programming Language :: Python :: 3.14
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Classifier: Programming Language :: Python :: Implementation :: CPython
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Classifier: Programming Language :: Python :: Implementation :: PyPy
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Classifier: Topic :: System :: Archiving :: Compression
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Requires-Python: >=3.10
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License-File: COPYING
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Provides-Extra: test
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Requires-Dist: pytest; extra == "test"
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Dynamic: author
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Dynamic: author-email
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Dynamic: classifier
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Dynamic: description
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Dynamic: home-page
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Dynamic: license
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Dynamic: license-file
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Dynamic: maintainer
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Dynamic: maintainer-email
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Dynamic: provides-extra
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Dynamic: requires-python
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Dynamic: summary
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|Build Status|
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PYZOPFLI
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========
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cPython bindings for
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`zopfli <http://googledevelopers.blogspot.com/2013/02/compress-data-more-densely-with-zopfli.html>`__.
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It requires Python 3.10 or greater.
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USAGE
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=====
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pyzopfli is a straight forward wrapper around zopfli's ZlibCompress method.
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::
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from zopfli.zlib import compress
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from zlib import decompress
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s = 'Hello World'
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print decompress(compress(s))
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pyzopfli also wraps GzipCompress, but the API point does not try to
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mimic the gzip module.
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::
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from zopfli.gzip import compress
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from StringIO import StringIO
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from gzip import GzipFile
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print GzipFile(fileobj=StringIO(compress("Hello World!"))).read()
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Both zopfli.zlib.compress and zopfli.gzip.compress support the following
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keyword arguments. All values should be integers; boolean parmaters are
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treated as expected, 0 and >0 as false and true.
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- *verbose* dumps zopfli debugging data to stderr
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- *numiterations* Maximum amount of times to rerun forward and backward
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pass to optimize LZ77 compression cost. Good values: 10, 15 for small
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files, 5 for files over several MB in size or it will be too slow.
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- *blocksplitting* If true, splits the data in multiple deflate blocks
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with optimal choice for the block boundaries. Block splitting gives
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better compression. Default: true (1).
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- *blocksplittinglast* If true, chooses the optimal block split points
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only after doing the iterative LZ77 compression. If false, chooses
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the block split points first, then does iterative LZ77 on each
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individual block. Depending on the file, either first or last gives
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the best compression. Default: false (0).
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- *blocksplittingmax* Maximum amount of blocks to split into (0 for
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unlimited, but this can give extreme results that hurt compression on
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some files). Default value: 15.
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TODO
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====
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- Stop reading the entire file into memory and support streaming
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- Monkey patch zlib and gzip so code with an overly tight binding can
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be easily modified to use zopfli.
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.. |Build Status| image:: https://github.com/fonttools/py-zopfli/actions/workflows/ci.yml/badge.svg?branch=master
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:target: https://github.com/fonttools/py-zopfli/actions/workflows/ci.yml
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