python-pandasHow to check if value is NaN in data frame

Usage example

import pandas as pd

phoneDataSet = {
  'Phone': ['iPhone 5', 'iPhone 6', 'iPhone8', 'Galaxy S9', 'Galaxy Note 10'],
  'Phone ID.': [12, 9, None, 78, None],
  'Phone Price': [204, None, 501, 800, None]
}

data = pd.DataFrame(phoneDataSet)
print( data[data['Phone Price'].isna()] )

output

            Phone  Phone ID.  Phone Price
1        iPhone 6        9.0          NaN
4  Galaxy Note 10        NaN          NaN