["python","pandas","sorting","dataframe","unique"]
Find the unique values in a column and then sort them

I have a pandas dataframe. I want to print the unique values of one of its columns in ascending order. This is how I am doing it: import pandas as pd df = pd.DataFrame({'A':[1,1,3,2,6,2,8]}) a = df['A'].unique() print a.sort() The problem is that I am getting a None for the output.
sorted(iterable): Return a new sorted list from the items in iterable. CODE import pandas as pd df = pd.DataFrame({'A':[1,1,3,2,6,2,8]}) a = df['A'].unique() print(sorted(a)) OUTPUT [1, 2, 3, 6, 8]