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Getting Started
API Reference
Development
Release Notes
C-Blosc2
Python-Blosc2
Donate to Blosc
GitHub
Mastodon
Bluesky
Section Navigation
Main Classes
SChunk
blosc2.schunk.SChunk.__init__
blosc2.schunk.SChunk.append_data
blosc2.schunk.SChunk.decompress_chunk
blosc2.schunk.SChunk.delete_chunk
blosc2.schunk.SChunk.get_chunk
blosc2.schunk.SChunk.insert_chunk
blosc2.schunk.SChunk.insert_data
blosc2.schunk.SChunk.iterchunks
blosc2.schunk.SChunk.iterchunks_info
blosc2.schunk.SChunk.fill_special
blosc2.schunk.SChunk.update_chunk
blosc2.schunk.SChunk.update_data
blosc2.schunk.SChunk.get_slice
blosc2.schunk.SChunk.__getitem__
blosc2.schunk.SChunk.__setitem__
blosc2.schunk.SChunk.__len__
blosc2.schunk.SChunk.to_cframe
blosc2.schunk.SChunk.postfilter
blosc2.schunk.SChunk.remove_postfilter
blosc2.schunk.SChunk.filler
blosc2.schunk.SChunk.prefilter
blosc2.schunk.SChunk.remove_prefilter
blosc2.schunk.SChunk.blocksize
blosc2.schunk.SChunk.cbytes
blosc2.schunk.SChunk.chunkshape
blosc2.schunk.SChunk.chunksize
blosc2.schunk.SChunk.contiguous
blosc2.schunk.SChunk.cparams
blosc2.schunk.SChunk.cratio
blosc2.schunk.SChunk.dparams
blosc2.schunk.SChunk.meta
blosc2.schunk.SChunk.nbytes
blosc2.schunk.SChunk.typesize
blosc2.schunk.SChunk.urlpath
blosc2.schunk.SChunk.vlmeta
blosc2.schunk_from_cframe
NDArray
blosc2.NDArray.__iter__
blosc2.NDArray.__len__
blosc2.NDArray.__getitem__
blosc2.NDArray.__setitem__
blosc2.NDArray.copy
blosc2.NDArray.get_chunk
blosc2.NDArray.indices
blosc2.NDArray.iterchunks_info
blosc2.NDArray.reshape
blosc2.NDArray.resize
blosc2.NDArray.save
blosc2.NDArray.slice
blosc2.NDArray.sort
blosc2.NDArray.squeeze
blosc2.NDArray.tobytes
blosc2.NDArray.to_cframe
blosc2.NDArray.T
blosc2.NDArray.ndim
blosc2.NDArray.shape
blosc2.NDArray.ext_shape
blosc2.NDArray.chunks
blosc2.NDArray.ext_chunks
blosc2.NDArray.blocks
blosc2.NDArray.blocksize
blosc2.NDArray.chunksize
blosc2.NDArray.dtype
blosc2.NDArray.fields
blosc2.NDArray.keep_last_read
blosc2.NDArray.info
blosc2.NDArray.schunk
blosc2.NDArray.size
blosc2.NDArray.cparams
blosc2.NDArray.dparams
blosc2.NDArray.urlpath
blosc2.NDArray.vlmeta
blosc2.asarray
blosc2.copy
blosc2.concat
blosc2.empty
blosc2.expand_dims
blosc2.frombuffer
blosc2.fromiter
blosc2.nans
blosc2.ndarray_from_cframe
blosc2.uninit
blosc2.zeros
blosc2.ones
blosc2.full
blosc2.arange
blosc2.linspace
blosc2.eye
blosc2.reshape
blosc2.stack
NDField
blosc2.NDField.__init__
blosc2.NDField.__iter__
blosc2.NDField.__len__
blosc2.NDField.__getitem__
blosc2.NDField.__setitem__
blosc2.NDField.schunk
blosc2.NDField.shape
LazyArray
blosc2.LazyArray.__getitem__
blosc2.LazyArray.compute
blosc2.LazyArray.indices
blosc2.LazyArray.save
blosc2.LazyArray.sort
blosc2.lazyexpr
blosc2.lazyudf
C2Array
blosc2.C2Array.__init__
blosc2.C2Array.__getitem__
blosc2.C2Array.get_chunk
blosc2.C2Array.shape
blosc2.C2Array.chunks
blosc2.C2Array.blocks
blosc2.C2Array.dtype
blosc2.C2Array.cparams
blosc2.URLPath.__init__
blosc2.c2context
Proxy
blosc2.Proxy.__init__
blosc2.Proxy.__getitem__
blosc2.Proxy.fetch
blosc2.Proxy.afetch
blosc2.Proxy.shape
blosc2.Proxy.dtype
blosc2.Proxy.cparams
blosc2.Proxy.info
blosc2.Proxy.fields
blosc2.Proxy.vlmeta
ProxySource
blosc2.ProxySource.get_chunk
blosc2.ProxySource.aget_chunk
blosc2.ProxySource.nbytes
blosc2.ProxySource.chunksize
blosc2.ProxySource.typesize
ProxyNDSource
blosc2.ProxyNDSource.get_chunk
blosc2.ProxyNDSource.aget_chunk
blosc2.ProxyNDSource.shape
blosc2.ProxyNDSource.dtype
blosc2.ProxyNDSource.chunks
blosc2.ProxyNDSource.blocks
SimpleProxy
blosc2.SimpleProxy.__init__
blosc2.SimpleProxy.__getitem__
blosc2.SimpleProxy.shape
blosc2.SimpleProxy.dtype
blosc2.SimpleProxy.src
Save and load
blosc2.save
blosc2.open
blosc2.save_array
blosc2.load_array
blosc2.save_tensor
blosc2.load_tensor
Compression, decompression and storage parameters
blosc2.CParams
blosc2.DParams
blosc2.Storage
Operations with arrays
Lazy Functions
blosc2.abs
blosc2.arcsin
blosc2.arccos
blosc2.arctan
blosc2.arctan2
blosc2.arcsinh
blosc2.arccosh
blosc2.arctanh
blosc2.sin
blosc2.cos
blosc2.tan
blosc2.sinh
blosc2.cosh
blosc2.tanh
blosc2.exp
blosc2.expm1
blosc2.log
blosc2.log10
blosc2.log1p
blosc2.sqrt
blosc2.conj
blosc2.real
blosc2.imag
blosc2.contains
blosc2.where
Reduction Functions
blosc2.all
blosc2.any
blosc2.sum
blosc2.prod
blosc2.mean
blosc2.std
blosc2.var
blosc2.min
blosc2.max
Linear Algebra
blosc2.matmul
blosc2.transpose
blosc2.matrix_transpose
blosc2.permute_dims
Expression Utilities
blosc2.evaluate
blosc2.get_expr_operands
blosc2.validate_expr
blosc2.jit
Compression Utilities
blosc2.compress
blosc2.compress2
blosc2.decompress
blosc2.decompress2
blosc2.pack
blosc2.pack_array
blosc2.pack_array2
blosc2.pack_tensor
blosc2.unpack
blosc2.unpack_array
blosc2.unpack_array2
blosc2.unpack_tensor
blosc2.clib_info
blosc2.compressor_list
blosc2.detect_number_of_cores
blosc2.free_resources
blosc2.get_clib
blosc2.nthreads
blosc2.print_versions
blosc2.register_codec
blosc2.register_filter
blosc2.set_blocksize
blosc2.set_nthreads
blosc2.set_releasegil
blosc2.set_compressor
blosc2.get_compressor
blosc2.get_blocksize
blosc2.get_cbuffer_sizes
blosc2.cparams_dflts
blosc2.dparams_dflts
blosc2.storage_dflts
blosc2.Codec
blosc2.Filter
blosc2.SpecialValue
blosc2.SplitMode
blosc2.Tuner
blosc2.compute_chunks_blocks
blosc2.get_slice_nchunks
blosc2.remove_urlpath
blosc2.blosclib_version
blosc2.DEFINED_CODECS_STOP
blosc2.GLOBAL_REGISTERED_CODECS_STOP
blosc2.USER_REGISTERED_CODECS_STOP
blosc2.EXTENDED_HEADER_LENGTH
blosc2.MAX_BUFFERSIZE
blosc2.MAX_BLOCKSIZE
blosc2.MAX_OVERHEAD
blosc2.MAX_TYPESIZE
blosc2.MIN_HEADER_LENGTH
blosc2.prefilter_funcs
blosc2.postfilter_funcs
blosc2.ucodecs_registry
blosc2.ufilters_registry
blosc2.VERSION_DATE
blosc2.VERSION_STRING
blosc2.__version__
API Reference
Compression Utilities
blosc2.VERSION_DATE
blosc2.VERSION_DATE
#
blosc2.
VERSION_DATE
=
'$Date::
2025-06-24
#$'
#
The C-Blosc2 version’s date.
On this page
VERSION_DATE
