pandas.errors.AttributeConflictWarning — pandas 3.0.0.dev0+2098.g9c5b9ee823 documentation (original) (raw)

exception pandas.errors.AttributeConflictWarning[source]#

Warning raised when index attributes conflict when using HDFStore.

Occurs when attempting to append an index with a different name than the existing index on an HDFStore or attempting to append an index with a different frequency than the existing index on an HDFStore.

See also

HDFStore

Dict-like IO interface for storing pandas objects in PyTables.

DataFrame.to_hdf

Write the contained data to an HDF5 file using HDFStore.

read_hdf

Read from an HDF5 file into a DataFrame.

Examples

idx1 = pd.Index(["a", "b"], name="name1") df1 = pd.DataFrame([[1, 2], [3, 4]], index=idx1) df1.to_hdf("file", "data", "w", append=True)
idx2 = pd.Index(["c", "d"], name="name2") df2 = pd.DataFrame([[5, 6], [7, 8]], index=idx2) df2.to_hdf("file", "data", "a", append=True)
AttributeConflictWarning: the [index_name] attribute of the existing index is [name1] which conflicts with the new [name2]...