PYTHON

python all elements not in list

[x for x in item if x not in z]

pandas not in list

>>> df
  countries
0        US
1        UK
2   Germany
3     China
>>> countries
['UK', 'China']
>>> df.countries.isin(countries)
0    False
1     True
2    False
3     True
Name: countries, dtype: bool
>>> df[df.countries.isin(countries)]
  countries
1        UK
3     China
>>> df[~df.countries.isin(countries)]
  countries
0        US
2   Germany

python not in list

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

python pandas not in list

not in list