pandas.errors.AttributeConflictWarning — pandas 2.2.3 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.

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]...