narwhals.Series.cat

get_categories

get_categories() -> SeriesT

Get unique categories from column.

Returns:

Type	Description
SeriesT	A new Series containing the unique categories.

Examples:

>>> import pandas as pd
>>> import narwhals as nw
>>> s_native = pd.Series(["apple", "mango", "mango"], dtype="category")
>>> s = nw.from_native(s_native, series_only=True)
>>> s.cat.get_categories().to_native()
0    apple
1    mango
dtype: object