error in code web scraping

[snippsat]

As mention you most check better that name of class is correct,it is only hGSR34 and not hGSR34 _2beYZw.
Also not all product has a rating so need a fix for this.
Most specify which parser that BS shall use or get a Warning message,preferably use lxml.
As you have loop move append lines into the loop,or only get first product in the lists.

soup = BeautifulSoup(browser.page_source, 'lxml')
products = [] #List to store name of the product
prices = [] #List to store price of the product
ratings = [] #List to store rating of the product
browser.get("https://www.flipkart.com/search?q=laptop&otracker=search&otracker1=search&marketplace=FLIPKART&as-show=off&as=off")
content = browser.page_source
soup = BeautifulSoup(content, 'lxml')
for a in soup.findAll('a', href=True, class_="_31qSD5"):
    name = a.find('div', class_="_3wU53n")
    price = a.find('div', class_="_1vC4OE _2rQ-NK")
    rating = a.find('div',class_="hGSR34")
    products.append(name.text)
    prices.append(price.text)
    try:
        ratings.append(rating.text)
    except AttributeError:
        pass

[>>> ratings
['4.2',
 '4.4',
 '4.5',
 '4.3',
 '4.4',
 '4',
 '4.2',
 '3.7',
 '4.6',
 '4.4',
 '4.5',
 '4',
 '4.5',
 '4.4',
 '4.7',
 '4',
 '4.5',
 '4.6',
 '4.2',
 '4.6',
 '4.3',
 '4.3',
 '5']
>>> prices
['₹39,990',
 '₹1,20,990',
 '₹35,990',
 '₹56,990',
 '₹52,990',
 '₹59,990',
 '₹32,990',
 '₹39,990',
 '₹43,990',
 '₹52,990',
 '₹59,990',
 '₹60,990',
 '₹35,990',
 '₹39,990',
 '₹38,990',
 '₹73,990',
 '₹24,990',
 '₹55,990',
 '₹69,990',
 '₹1,01,990',
 '₹59,990',
 '₹54,990',
 '₹61,990',
 '₹75,990']