pandas.errors.AttributeConflictWarning

exception pandas.errors.AttributeConflictWarning

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]...