pandas.Index.get_slice_bound#

Index.get_slice_bound(label,side)[source]#

Calculate slice bound that corresponds to given label.

Returns leftmost (one-past-the-rightmost ifside=='right') positionof given label.

Parameters:

labelobject

side{‘left’, ‘right’}

Returns:

int

Index of label.

See also

Index.get_loc

Get integer location, slice or boolean mask for requested label.

Examples

>>>idx=pd.RangeIndex(5)>>>idx.get_slice_bound(3,'left')3

>>>idx.get_slice_bound(3,'right')4

Iflabel is non-unique in the index, an error will be raised.

>>>idx_duplicate=pd.Index(['a','b','a','c','d'])>>>idx_duplicate.get_slice_bound('a','left')Traceback (most recent call last):KeyError:Cannot get left slice bound for non-unique label: 'a'