(fix): ensure no typesize in the Blosc config

Author: ilan-gold

numcodecs/blosc.pyx

@@ -489,11 +489,11 @@ class Blosc(Codec):
         self.clevel = clevel
         self.shuffle = shuffle
         self.blocksize = blocksize
-        self.typesize = typesize
+        self._typesize = typesize
 
     def encode(self, buf):
         buf = ensure_contiguous_ndarray(buf, self.max_buffer_size)
-        return compress(buf, self._cname_bytes, self.clevel, self.shuffle, self.blocksize, self.typesize)
+        return compress(buf, self._cname_bytes, self.clevel, self.shuffle, self.blocksize, self._typesize)
 
     def decode(self, buf, out=None):
         buf = ensure_contiguous_ndarray(buf, self.max_buffer_size)

numcodecs/tests/test_blosc.py

@@ -282,3 +282,9 @@ def test_typesize_less_than_1():
     arr = np.arange(100)
     with pytest.raises(ValueError, match=r"Cannot use typesize"):
         compressor.encode(arr.tobytes())
+
+
+def test_config_no_typesize():
+    codec = Blosc(shuffle=Blosc.SHUFFLE, typesize=5)
+    config = codec.get_config()
+    assert "typesize" not in config