HDFStore.put(self, key, value, format=None, append=False, **kwargs)[source]

Store object in HDFStore

value{Series, DataFrame}
format‘fixed(f)|table(t)’, default is ‘fixed’
fixed(f)Fixed format

Fast writing/reading. Not-appendable, nor searchable

table(t)Table format

Write as a PyTables Table structure which may perform worse but allow more flexible operations like searching / selecting subsets of the data

appendboolean, default False

This will force Table format, append the input data to the existing.

data_columnslist of columns to create as data columns, or True to

use all columns. See here # noqa

encodingdefault None, provide an encoding for strings
dropnaboolean, default False, do not write an ALL nan row to

the store settable by the option ‘io.hdf.dropna_table’

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