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10. A csv file ‘cars.csv’ contains the following data.
Brand Model Year Price
Toyota Camry 2021 945000
Honda Civic 2022 896000
Ford Mustang 2021 867000
Chevrolet Malibu 2021 785000
Nissan Altima 2022 625000
Write a Python Program to add more data to the above file.
import csv
file=open("cars.csv", "a")
wr=csv.writer(file)
wr.writerow(["Tata", "Nano",2022,225000] )
print("Row added")
file.close()
Output:
Row added
11. Write a Python program to display details of the above file ‘cars.csv’.
import csv
file=open("cars.csv", "r")
data=csv.reader(file)
for row in data:
print(row)
file.close()
Output:
['Brand', 'Model', 'Year', 'Price']
['Toyota', 'Camry', '2021', '945000']
['Honda', 'Civic', '2022', '896000']
['Ford', 'Mustang', '2021', '867000']
['Chevrolet', 'Malibu', '2021', '785000']
['Nissan', 'Altima', '2022', '625000']
['Tata', 'Nano', '2022', '225000']
12. Create a 1D array using NumPy with values from 20 to 40. Then reshape this array into a 2D array.
import numpy as np
# Create a 1D array with values ranging from 20 to 40
array_1d = np.arange(20, 41)
# Reshape the 1D array into a 2D array with 3 rows and 7 columns
array_2d = array_1d.reshape(3, 7)
# Print the 2D array
print(array_2d)
Output:
[[20 21 22 23 24 25 26]
[27 28 29 30 31 32 33]
[34 35 36 37 38 39 40]]
Practical Questions 433

