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Hdf warning #12276

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20 changes: 20 additions & 0 deletions doc/source/io.rst
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Expand Up @@ -2895,6 +2895,26 @@ everything in the sub-store and BELOW, so be *careful*.

.. _io.hdf5-types:


.. warning:: Hierarchical keys cannot be retrieved as dotted (attribute) access as described above for items stored under root node.

.. ipython:: python

store.foo.bar.bah
AttributeError: 'HDFStore' object has no attribute 'foo'

store.root.foo.bar.bah
/foo/bar/bah (Group) ''
children := ['block0_items' (Array), 'axis1' (Array), 'axis0' (Array), 'block0_values' (Array)]

Use explicit string based keys

.. ipython:: python

bah = store['foo/bar/bah']



Storing Types
'''''''''''''

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