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()to detect if a data frame has nan values
df.isnull().sum().sum()
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