text_plain_output_1.png
import pandas as pd # data processing, CSV file I/O (e.g. pd.read_csv)

data = pd.read_csv('/kaggle/input/automobile-dataset/Automobile_data.csv')

data.isnull().sum()

print('Number of ? in columns are')
for col in data.columns:
    if len(data[data[col] == '?']) > 0:
        print(col, 'has ->', len(data[data[col] == '?']))