caterva2.Client.fetch

Client.fetch(path, slice_=None)

Retrieves the entire content (or a specified slice) of a dataset.

Parameters:

• path (str) – Path to the dataset.

• urlbase (str, optional) – Base URL to query. Defaults to caterva2.sub_urlbase_default.

• slice_ (int, slice, tuple of ints and slices, or None) – Specifies the slice to fetch. If None, the whole dataset is fetched.

Returns:

The requested slice of the dataset as a Numpy array.

Return type:

numpy.ndarray

Examples

>>> import caterva2 as cat2
>>> client = cat2.Client('https://demo.caterva2.net')
>>> client.fetch('example/ds-2d-fields.b2nd', (slice(0, 2), slice(0, 2))
array([[(0.0000000e+00, 1.       ), (5.0002502e-05, 1.00005  )],
       [(1.0000500e-02, 1.0100005), (1.0050503e-02, 1.0100505)]],
      dtype=[('a', '<f4'), ('b', '<f8')])