python check if column has nan code example

Example 1: to detect if a data frame has nan values

df.isnull().sum().sum()
5

Example 2: how to check if column has na python

#Check for NaN under a single DataFrame column:
df['your column name'].isnull().values.any()
#Count the NaN under a single DataFrame column:
df['your column name'].isnull().sum()
#Check for NaN under an enire DataFrame:
df.isnull().values.any()