text_plain_output_1.png
import pandas as pd

import pandas as pd # data processing, CSV file I/O (e.g. pd.read_csv)

df = pd.read_csv('../input/openintro-possum/possum.csv')
df

cat = ['sex', 'Pop', 'site']
for col in cat:
    print(f'In {col}: {df[col].unique()}')