pandas.errors.UnsortedIndexError — pandas 2.2.3 documentation (original) (raw)

exception pandas.errors.UnsortedIndexError[source]#

Error raised when slicing a MultiIndex which has not been lexsorted.

Subclass of KeyError.

Examples

df = pd.DataFrame({"cat": [0, 0, 1, 1], ... "color": ["white", "white", "brown", "black"], ... "lives": [4, 4, 3, 7]}, ... ) df = df.set_index(["cat", "color"]) df lives cat color 0 white 4 white 4 1 brown 3 black 7 df.loc[(0, "black"):(1, "white")] Traceback (most recent call last): UnsortedIndexError: 'Key length (2) was greater than MultiIndex lexsort depth (1)'