how to count missing values in python code example

Example 1: count missing values by column in pandas

df.isna().sum()

Example 2: df count missing values

In [5]: df = pd.DataFrame({'a':[1,2,np.nan], 'b':[np.nan,1,np.nan]})

In [6]: df.isna().sum()
Out[6]:
a    1
b    2
dtype: int64

Example 3: how to check missing values in python

# Total missing values for each featureprint df.isnull().sum()Out:ST_NUM          2ST_NAME         0OWN_OCCUPIED    2NUM_BEDROOMS    4