isnull()

import pandas as pd

# উদাহরণ ১: isnull()
data = {'Name': ['John', None, 'Bob'],
        'Age': [25, None, 35],
        'City': ['New York', 'London', None]}

df = pd.DataFrame(data)
print(df.isnull().sum())

	Name	Age	City
0	False	False	False
1	True	True	False
2	False	False	True

import pandas as pd

# উদাহরণ ১: isnull()
data = {'Name': ['John', None, 'Bob'],
        'Age': [25, None, 35],
        'City': ['New York', 'London', None]}

df = pd.DataFrame(data)
print(df.isnull().sum())

Name    1
Age     1
City    1
dtype: int64