pandas.Index.dropna# Index.dropna(how='any')[source]# Return Index without NA/NaN values. Parameters how{‘any’, ‘all’}, default ‘any’If the Index is a MultiIndex, drop the value when any or all levels are NaN. Returns Index Examples >>> idx = pd.Index([1, np.nan, 3]) >>> idx.dropna() Index([1.0, 3.0], dtype='float64')