dropna=False code example
Example 1: dropping nan in pandas dataframe
df.dropna(subset=['name', 'born'])
Example 2: drop na pandas
>>> df.dropna(subset=['name', 'born'])
name toy born
1 Batman Batmobile 1940-04-25
df.dropna(subset=['name', 'born'])
>>> df.dropna(subset=['name', 'born'])
name toy born
1 Batman Batmobile 1940-04-25