pandas dataframe check if a value in a specific location is a NaN value-CodePudding

in my program i need to find out if a single value in my pandas.DataFrame is either a NaN or not? i figured:

print(df.loc[index, 'Column1'])

output:

nan

but this script works like a charm

nullV = None
print(nullV == None)

output:

True

not this though

print(df.loc[39, 'booking'] == None)

output:

False

CodePudding user response：

There is a difference between nan and None. A value of nan still allows the column to be a 64-bit float dtype, instead of getting converted to the object dtype.

To check if it is nan, use:

df.loc[index, 'Column1'].isna()

CodePudding user response：

This should work:

import numpy as np

np.isnan(df.loc[39, 'booking'])