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/pandas 0.25

pandas.MultiIndex.is_lexsorted

MultiIndex.is_lexsorted(self) [source]

Return True if the codes are lexicographically sorted

Returns:
bool

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Licensed under the 3-clause BSD License.
https://pandas.pydata.org/pandas-docs/version/0.25.0/reference/api/pandas.MultiIndex.is_lexsorted.html