blosc2.Proxy.fetch#
- Proxy.fetch(item: slice | list[slice] = None) NDArray | SChunk #
Get the container used as cache with the requested data updated.
- Parameters:
item¶ (slice or list of slices, optional) – If not None, only the chunks that intersect with the slices in items will be retrieved if they have not been already.
- Returns:
out – The local container used to cache the already requested data.
- Return type:
Examples
>>> import numpy as np >>> import blosc2 >>> data = np.arange(20).reshape(10, 2) >>> ndarray = blosc2.asarray(data) >>> proxy = blosc2.Proxy(ndarray) >>> slice_data = proxy.fetch((slice(0, 3), slice(0, 2))) >>> slice_data[:3, :2] [[0 1] [2 3] [4 5]]