pandas.Series.unique

Series.unique() [source]

Return unique values in the object. Uniques are returned in order of appearance, this does NOT sort. Hash table-based unique.

Parameters:	values : 1d array-like
Returns:	unique values. If the input is an Index, the return is an Index If the input is a Categorical dtype, the return is a Categorical If the input is a Series/ndarray, the return will be an ndarray

See also

unique, Index.unique, Series.unique