pandas not in list

1>>> df
2  countries
30        US
41        UK
52   Germany
63     China
7>>> countries
8['UK', 'China']
9>>> df.countries.isin(countries)
100    False
111     True
122    False
133     True
14Name: countries, dtype: bool
15>>> df[df.countries.isin(countries)]
16  countries
171        UK
183     China
19>>> df[~df.countries.isin(countries)]
20  countries
210        US
222   Germany

1>>> 3 not in [2, 3, 4]
2False
3>>> 3 not in [4, 5, 6]
4True

1import pandas as pd
2
3>>> df
4  country
50        US
61        UK
72   Germany
83     China
9>>> countries_to_keep
10['UK', 'China']
11>>> df.country.isin(countries_to_keep)
120    False
131     True
142    False
153     True
16Name: country, dtype: bool
17>>> df[df.country.isin(countries_to_keep)]
18  country
191        UK
203     China
21>>> df[~df.country.isin(countries_to_keep)]
22  country
230        US
242   Germany