filter on name and add column in pandas code example

Example 1: pandas column filter

filter = df['column']!= 0
df = df[filter]

Example 2: how to apply filters in pandas

# filter rows for year 2002 using  the boolean expression
>gapminder_2002 = gapminder[gapminder.year.eq(2002)]
>print(gapminder_2002.shape)
(142, 6)