How can I remove Nan from list Python/NumPy

Question

I have a list that countain values, one of the values I got is \'nan\'

countries= [nan, \'USA\', \'UK\', \'France\']

I tried to remove it,

Answer 1

Using your example where...

countries= [nan, 'USA', 'UK', 'France']

Since nan is not equal to nan (nan != nan) and countries[0] = nan, you should observe the following:

countries[0] == countries[0]
False

However,

countries[1] == countries[1]
True
countries[2] == countries[2]
True
countries[3] == countries[3]
True

Therefore, the following should work:

cleanedList = [x for x in countries if x == x]