scrape_tesco_search.py

import requests
from bs4 import BeautifulSoup

response = requests.get('http://www.tesco.com/groceries/en-GB/search?query=blueberry')
soup = BeautifulSoup(response.text, 'html.parser')

for item in soup.select('.product-list--list-item'):
    try:
        product = item.find(class_='product-image').get('alt', '')
        value = item.find(class_='value').get_text()
        print (product, '£'+value)
    except AttributeError:
        pass