* Sun Jan 21 2018 email@example.com
- Fix building
* Wed Apr 19 2017 firstname.lastname@example.org
- Source url must be https.
* Wed Apr 19 2017 email@example.com
- Update to version 1.5.1
* License updated from MIT to BSD.
* Updated to C-Blosc 1.11.3.
- Update to version 1.5.0
* Added a new `blosc.set_releasegil()` function that allows to
release/acquire the GIL at will. See PR #116.
Thanks to Robert McLeod.
* Updated to C-Blosc 1.11.2.
* Added tests that detect possible memory leaks.
Thanks to Robert McLeod.
- Update to version 1.4.4
* Updated to C-Blosc 1.11.1. Fixes #115.
- Update to version 1.4.3
* Internal C-Blosc sources updated to 1.11.0. Among other things, this
updates the internal Zstd codec to version 1.0.0 (i.e. it is
officially apt for production usage!).
- Update to version 1.4.1
* Internal C-Blosc sources updated to 1.10.1. This fixes an outstanding issue
with the clang compiler. For details, see:
- Update to version 1.4.0
* Internal C-Blosc sources updated to 1.10.0.
* Benchmarks updated for a Skylake processor (Xeon E3-1245 v5 @
- Update to version 1.3.3
* Internal C-Blosc sources updated to 1.9.3.
* C-Blosc do not segfaults anymore, so -O1 flag on Linux is not the
* SSE2 and AVX2 are now auto-discovered so the internal C-Blosc will be
compiled with maximum optimization on processors supporting them.
- Update to version 1.3.2
* Fixed the version of the include C-Blosc library (should be 1.8.1 not
- Update to version 1.3.1
* Use the -O1 flag for compiling the included C-Blosc sources on Linux.
This represents slower performance, but fixes the nasty issue #110.
Also, it prints a warning for using an external C-Blosc library.
* Internal C-Blosc version bumped to 1.8.1 for better compatibility
with gcc 5.3.1 in forthcoming Ubuntu Xenial.
* Added a protection to avoid using BITSHUFLE with C-Blosc < 1.8.0.
* Restored old symbols for backward compatibility with pre 1.3.0:
However, these are considered deprecated and should be replaced by
libraries using python-blosc by the ones without the BLOSC_ prefix.
- Update to version 1.3.0
* Internal C-Blosc version bumped to 1.8.0. As consequence, support for
BITSHUFFLE is here. For activating it, just pass `blosc.BITSHUFFLE`
to the `shuffle` parameter of compression functions.
* Added a new `as_bytearray=False` parameter to the `decompress()` function
so that a mutable bytearray will be returned instead of a bytes one
(inmutable). PR #107. Thanks to Joe Jevnik.
* The '__all__' variable has been removed from the module. I consider
this good practice to avoid things like "from blosc import *".
* For consistency, the next symbols have been renamed:
BLOSC_VERSION_STRING -> VERSION_STRING,
BLOSC_VERSION_DATE -> VERSION_DATE,
BLOSC_MAX_BUFFERSIZE -> MAX_BUFFERSIZE,
BLOSC_MAX_THREADS -> MAX_THREADS,
BLOSC_MAX_TYPESIZE -> MAX_TYPESIZE,
* The `typesize` parameter is set by default to 8 in compression
functions. This usually behaves well for 4-bytes typesizes too.
Nevertheless, it is advised to use the actual typesize.
* The maximum number of threads to use by default is set to 4 (less if
less cores are detected). Feel free to use more or less threads
depending on the resources you want to use for compression.
- Implement single-spec version.
* Thu Mar 10 2016 firstname.lastname@example.org
- Update to version 1.2.8
* Updated to c-blosc v1.7.0. However, the new bitshuffle filter
has not been made public because recent reports indicate that
it seems too green for production.
* Support bytes-like objects that support the buffer interface
as input to compress and decompress. On Python 2.x this
includes unicode, on Python 3.x it doesn't. (#80 #94 @esc)
* Fix a memory leak in decompress. Added tests to catch memory
leaks. (#102 #103 #104 @sdvillal)
* Various miscellaneous fixes and improvements.
* Tue May 19 2015 email@example.com
- Update to version 1.2.7
* Updated to c-blosc v1.6.1.
* Sun Apr 26 2015 firstname.lastname@example.org
- update to version 1.2.5:
* Updated to c-blosc v1.5.4.
* Added wrapper for the expert function ``set_blocksize``.
* Fix setup.py to allow compilation on posix architectures
without SSE2. (#70 @andreas-schwab)
* Don't release the GIL on compression/decompression (#77 @esc)
* Various miscellaneous fixes.
- drop setup.patch: fixed upstream
* Wed Aug 06 2014 email@example.com
- setup.patch: fix use of unknown compiler option
* Thu Jul 17 2014 firstname.lastname@example.org
- Update to 1.2.4
- Updated to c-blosc 1.4.0. This added support for non-Intel
architectures, most specially those not supporting unaligned access.
* Thu May 08 2014 email@example.com
- Update to 1.2.3
- Updated to c-blosc 1.3.5. This removed a 'pointer from integer
without a cast' compiler warning due to a bad macro definition.
- Update to 1.2.2
- Updated to c-blosc 1.3.4. This fixed a false buffer overrun
condition. This bug made c-blosc (and hence python-blosc) to fail,
even if the failure was not real.
- Update to 1.2.1
- Updated to c-blosc 1.3.3.
- Added a new `cname2clib` map for programatically determine the library
associated to a compressor.
- New `get_clib(cbuffer)` that tells which compression library format
has been used to created the compressed `cbuffer`.
- Update to 1.2.0
- This release adds support for the multiple compressors added in Blosc
- Added new `cname` parameter in compression functions like
`compress()`, `compress_ptr()` and `pack_array()`.
- Added a new utility function named `compressor_list()` that returns
the list of compressors supported in the Blosc build.
- Added 'bench/compress_ptr.py' for comparing times of the different
compressors in Blosc and NumPy.
- Update to 1.1.0
- Added new `compress_ptr` and `decompress_ptr` functions that allows to
compress and decompress from/to a data pointer. These are low level
calls and user must make sure that the pointer data area is safe.
- Since Blosc (the C library) already supports to be installed as an
standalone library (via cmake), it is also possible to link
python-blosc against a system Blosc library.
- The Python calls to Blosc are now thread-safe (another consequence of
recent Blosc library supporting this at C level).
- Many checks on types and ranges of values have been added. Most of
the calls will now complain when passed the wrong values.
- Docstrings are much improved. Also, Sphinx-based docs are available
- Update to 1.0.6
- Fix compile error with msvc compilers. Thanks to Christoph Gohlke.
- Update to 1.0.5
- Upgraded to latest Blosc 1.1.4.
- Better handling of condition errors, and improved memory releasing in
case of errors (thanks to Valentin Haenel and Han Genuit).
- Better handling of types (should compile without warning now, at least
- Update to 1.0.4
- Optimized the amount of data copied during compression (using
_PyBytes_Resize() now instead of old PyBytes_FromStringAndSize()).
This leads to improvements in compression speed ranging from 1.2x for
highly compressible chunks up to 7x for mostly uncompressible data.
Thanks to Valentin Haenel for this nice contribution.
- Use external blosc library. The internal one builds a bad version
* Fri Sep 07 2012 firstname.lastname@example.org
- Initial version