File: carray1.py

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pytables 3.10.2-3
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import numpy as np

import tables as tb

file_name = "carray1.h5"
shape = (200, 300)
atom = tb.UInt8Atom()
filters = tb.Filters(complevel=5, complib="zlib")

h5f = tb.open_file(file_name, "w")
ca = h5f.create_carray(h5f.root, "carray", atom, shape, filters=filters)
# Fill a hyperslab in ``ca``.
ca[10:60, 20:70] = np.ones((50, 50))
h5f.close()

# Re-open and read another hyperslab
h5f = tb.open_file(file_name)
print(h5f)
print(h5f.root.carray[8:12, 18:22])
h5f.close()