pandas.MultiIndex.slice_locs
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MultiIndex.slice_locs(start=None, end=None, step=None, kind=None)[source]
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For an ordered MultiIndex, compute the slice locations for input labels. They can be tuples representing partial levels, e.g. for a MultiIndex with 3 levels, you can pass a single value (corresponding to the first level), or a 1-, 2-, or 3-tuple. Parameters: start : label or tuple, default None If None, defaults to the beginning end : label or tuple If None, defaults to the end step : int or None Slice step kind : string, optional, defaults None Returns: (start, end) : (int, int) NotesThis function assumes that the data is sorted by the first level 
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    https://pandas.pydata.org/pandas-docs/version/0.20.3/generated/pandas.MultiIndex.slice_locs.html