Python csv compare two file, update value if two value is matched

[DeaD_EyE]

This should work.
Some magic to remove white spaces from nested rows and using tuple unpacking.
If you can, use pathlib.Path, but it's not mandatory.

from pathlib import Path
import csv


csv_file1 = Path('car.csv')
csv_file2 = Path('price.csv')
new_file = Path('result.csv')


with csv_file1.open() as fd_car, csv_file2.open() as fd_price,\
    new_file.open('w') as fd_result:
    cars = csv.reader(fd_car)
    prices = csv.reader(fd_price)
    writer = csv.writer(fd_result)
    # skipping headers
    next(cars)
    next(prices)
    for rows in zip(cars, prices):
        # strip whitespaces
        (car, car_price), (old_price, new_price) = (map(lambda s: s.strip(), row) for row in rows)
        print('car-row:', car, car_price, 'price-row:', old_price, new_price)
        # compare price with old_price
        # remind, that you compare strings
        if car_price != old_price:
            print('Price missmatch, skipping', car)
            continue
        writer.writerow([car, new_price])