Getting ready for release 2.5.0

Author: martaiborra

ANNOUNCE.rst

@@ -1,12 +1,13 @@
-Announcing Python-Blosc2 2.4.0
+Announcing Python-Blosc2 2.5.0
 ==============================
 
-The new minor release 2.4 adds the grok codec plugin (more info in the blog
-post: https://www.blosc.org/posts/blosc2-grok-release/ ),
-the `blosc2.get_slice_nchunks()` function to get an array of chunk
-indexes needed to get a slice of a Blosc2 container and an
-imported target with pkg-config to support windows.
-C-Blosc2 is updated to the latest stable version.
+The new minor release 2.5 adds the `INT_TRUNC` filter for integer
+truncation, some optimizations for the zstd codec and the support for slices
+in ``blosc2.get_slice_nchunks()`` when using SChunk objects.
+Furthermore, the grok library will now be initialized when
+loading the plugin (so no need to import the package from Python to do so),
+the doc was revised and improved, and C-Blosc2
+is updated to the latest stable version.
 
 For more info, you can have a look at the release notes in:
 

RELEASE_NOTES.md

@@ -1,12 +1,21 @@
 # Release notes
 
-## Changes from 2.4.0 to 2.4.1
+## Changes from 2.4.0 to 2.5.0
+
+* Updated to latest C-Blosc2 2.13.0.
+
+* Added the filter `INT_TRUNC` for integer truncation.
+
+* Added some optimizations for zstd.
+
+* Now the grok library is initialized when loading the 
+  plugin from C-Blosc2.
+
+* Improved doc.
 
 * Support for slices in ``blosc2.get_slice_nchunks()`` when using SChunk
   objects.
 
-* Added a new `Schunk.__len__()` method.
-
 ## Changes from 2.3.2 to 2.4.0
 
 * Updated to latest C-Blosc2 2.12.0.

VERSION

@@ -1 +1 @@
-2.4.1.dev0
+2.5.0

blosc2/blosc2_ext.pyx

@@ -940,6 +940,9 @@ cdef class SChunk:
         return self.schunk.chunksize // self.schunk.typesize
 
     def __len__(self):
+        """
+        Return the number of items in the SChunk.
+        """
         return self.schunk.nbytes // self.schunk.typesize
 
     @property

blosc2/schunk.py

@@ -239,10 +239,6 @@ def __init__(self, chunksize=None, data=None, **kwargs):
         self._cparams = super(SChunk, self).get_cparams()
         self._dparams = super(SChunk, self).get_dparams()
 
-    def __len__(self):
-        """Return the number of items in the SChunk."""
-        return self.nbytes // self.typesize
-
     @property
     def cparams(self):
         """

tests/test_schunk_constructor.py

@@ -32,6 +32,7 @@ def test_schunk_numpy(contiguous, urlpath, cparams, dparams, chunksize):
     bytes_obj = data.tobytes()
     schunk = blosc2.SChunk(chunksize=chunksize, data=data, **storage)
     # Test properties
+    assert len(schunk) == num_elem
     assert chunksize == schunk.chunksize
     assert chunksize / 4 == schunk.chunkshape
     assert cparams.get("blocksize", 0) == schunk.blocksize