pd.read_hdf throws 'cannot set WRITABLE flag to True of this array'

Are you using numpy 1.16? It is incompatible with the latest release of pytables (see https://github.com/PyTables/PyTables/blob/v3.4.4/tables/hdf5extension.pyx#L2155) but the pytables team have not yet released a fixed version: https://github.com/PyTables/PyTables/issues/719

The only way I found to fix this is to downgrade numpy.


Upgrading PyTables to version > 3.5.1 should solve this.

pip install --upgrade tables

Tags:

Python

Pandas

Pytables

Hdf

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