Use the name property to get the name or the label of a Series.
>>> df = DataFrame("admissions_train") >>> gpa = df.select(["gpa"]).squeeze() >>> gpa 0 4.00 1 2.33 2 3.46 3 3.83 4 4.00 5 2.65 6 3.57 7 3.44 8 3.85 9 3.95 Name: gpa, dtype: float64
>>> gpa.name 'gpa'