How to scrape prices from websites with Python

Most other e-commerce sites follow the same structure, and the only things that change are the class names and tag types (i.e., 

 and such). The key is to select and right-click on the elements you want to extract and select “Inspect”.

Now that you have a clear understanding of the web structure, you can start writing the script to scrape the prices of these products.

3. Writing the script

First, write a function that initializes the web driver with a user header and fetches the intended URL, using beautifulsoup to parse the content.

def scrape_ebay_headphones():

    # Initialize WebDriver with webdriver-manager
    service = Service(ChromeDriverManager().install())
    options = webdriver.ChromeOptions()
    options.add_argument("--headless")
    options.add_argument(
        "user-agent=Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36")
    driver = webdriver.Chrome(service=service, options=options)


    url = "https://www.ebay.com/b/Headphones/112529/bn_879608"
    items = [] # empty list to store

    try:
        print("Fetching page...")
        driver.get(url)
        time.sleep(5)  # waiting for page to load
        # In real-world applications, consider using WebDriverWait for more efficient waiting



        # parsing the page
        soup = BeautifulSoup(driver.page_source, 'html.parser')

Thereafter, you can use the find_all() function to fetch the listing container and the listings as below:

listings_container = soup.find('ul', class_='brwrvr__item-results brwrvr__item-results--list')
        if not listings_container:
            print("Could not find listings container")
            return items

        # finding all product items
        product_containers = listings_container.find_all('li', class_='brwrvr__item-card brwrvr__item-card--list')

        items_found = 0 

Once successfully extracted, you can write a loop to go through each of the product listings and extract the required fields: product title and price.

        for container in product_containers:
            try:
                # Get product name
                name_elem = container.find('h3', class_='textual-display bsig__title__text')
                name = name_elem.text.strip() if name_elem else "Name not found"

                # Get price
                price_elem = container.find('span', class_='textual-display bsig__price bsig__price--displayprice')
                price = price_elem.text.strip() if price_elem else "Price not found"

                items.append({
                    'name': name,
                    'price': price
                })

                items_found += 1
                print(f"Item {items_found}: {name} - {price}")

                if items_found >= 10:
                    break

            except AttributeError:
                continue

        return items

If there’s an error, you can add a print statement to return the error and, finally, make the driver quit.

    except Exception as e:
        print(f"Error: {e}")
        return []

    finally:
        driver.quit()

And that’s pretty much it. All that’s left to do is to run the function via a main() function as below:

def main():
    print("Starting eBay headphone price scraper...")
    scraped_items = scrape_ebay_headphones()

    print("nScraped Items Summary:")
    for i, item in enumerate(scraped_items, 1):
        print(f"{i}. {item['name']} - {item['price']}")


if __name__ == "__main__":
    main()

Once run, this scraper would return an output with 10 scraped items like the following image.

The complete code

Here’s the complete script for scraping prices from a website using selenium and beautifulsoup.

from selenium import webdriver
from selenium.webdriver.chrome.service import Service
from webdriver_manager.chrome import ChromeDriverManager
from bs4 import BeautifulSoup
import time

def scrape_ebay_headphones():
    # Initialize WebDriver with webdriver-manager
    service = Service(ChromeDriverManager().install())
    options = webdriver.ChromeOptions()
    options.add_argument("--headless")
    options.add_argument(
        "user-agent=Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36")
    driver = webdriver.Chrome(service=service, options=options)

    url = "https://www.ebay.com/b/Headphones/112529/bn_879608"
    items = []

    try:
        print("Fetching page...")
        driver.get(url)
        time.sleep(5)  # Wait for page to load

        # Parse page source with BeautifulSoup
        soup = BeautifulSoup(driver.page_source, 'html.parser')

        # Find listings container
        listings_container = soup.find('ul', class_='brwrvr__item-results brwrvr__item-results--list')
        if not listings_container:
            print("Could not find listings container")
            return items

        # Find all product items
        product_containers = listings_container.find_all('li', class_='brwrvr__item-card brwrvr__item-card--list')

        items_found = 0

        for container in product_containers:
            try:
                # Get product name
                name_elem = container.find('h3', class_='textual-display bsig__title__text')
                name = name_elem.text.strip() if name_elem else "Name not found"

                # Get price
                price_elem = container.find('span', class_='textual-display bsig__price bsig__price--displayprice')
                price = price_elem.text.strip() if price_elem else "Price not found"

                items.append({
                    'name': name,
                    'price': price
                })

                items_found += 1
                print(f"Item {items_found}: {name} - {price}")

                if items_found >= 10:
                    break

            except AttributeError:
                continue

        return items

    except Exception as e:
        print(f"Error: {e}")
        return []

    finally:
        driver.quit()


def main():
    print("Starting eBay headphone price scraper...")
    scraped_items = scrape_ebay_headphones()

    print("nScraped Items Summary:")
    for i, item in enumerate(scraped_items, 1):
        print(f"{i}. {item['name']} - {item['price']}")


if __name__ == "__main__":
    main()

4. Deploying to Apify

Although you have your own website price scraper now, it lacks 2 important features: automated scraping and convenient storage. To solve this, you can deploy the scraper on a platform like Apify.

Follow these steps to deploy this script on Apify:

#1. Create an account on Apify

#2. Create a new Actor

mkdir website-prices-scraper
cd website-prices-scraper

• Then, initialize the Actor by typing apify init.

#3. Create the main.py script

• Note that you would have to make some changes to the previous script to make it Apify-friendly. Such changes are importing Apify SDK and updating input/output handling.
• You can find the modified script on GitHub

#4. Create the Dockerfile and requirements.txt

FROM apify/actor-python:3.8

# Installing dependencies
RUN apt-get update && apt-get install -y 
    wget 
    unzip 
    gnupg 
    libnss3 
    libgconf-2-4 
    libxss1 
    libappindicator1 
    fonts-liberation 
    libasound2 
    libatk-bridge2.0-0 
    libatk1.0-0 
    libcups2 
    libgbm1 
    libgtk-3-0 
    libxkbcommon0 
    xdg-utils 
    libu2f-udev 
    libvulkan1 
    && rm -rf /var/lib/apt/lists/*

# Installing ChromeDriver
RUN wget -O /tmp/chromedriver.zip https://chromedriver.storage.googleapis.com/114.0.5735.90/chromedriver_linux64.zip && 
    unzip /tmp/chromedriver.zip -d /usr/local/bin/ && 
    rm /tmp/chromedriver.zip

# Installing Chrome
RUN wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add - && 
    sh -c 'echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google-chrome.list' && 
    apt-get update && apt-get install -y google-chrome-stable && 
    rm -rf /var/lib/apt/lists/*

# Copying all files to the working directory
COPY . ./

# Installing necessary packages
RUN pip install --no-cache-dir -r requirements.txt

# Setting the entry point to your script
CMD ["python", "main.py"]

beautifulsoup4
selenium
webdriver-manager
asyncio
apify-client

#5. Deploy

• Type apify login to log in to your account. You can either use the API token or verify through your browser.
• Once logged in, type apify push, and you’re good to go.

Once deployed, head over to Apify Console > Your Actor > Click “Start” to run the scraper on Apify.

Once the run is successful, you can view the output of the scraper on the “Output” tab.

To view and download output, click “Export Output”.

You can select/omit sections and download the data in different formats, such as CSV, JSON, Excel, etc.

Building a price tracker

Since the scraper is deployed on Apify, you can schedule it to run hourly, daily, or monthly and then track any price changes by writing a script to retrieve saved data and the latest data.

Also note that you don’t need to write a script to save the data, as Apify saves the output for all the runs separately on the “Runs” tab.

Follow these steps to set up your tracker:

• #1. Schedule the Actor by clicking the three dots (•••) in the top-right corner of the Actor dashboard > Schedule Actor option. You can change the schedule however you’d like.

Once the scraper is run a few times (to capture any price changes), run this script:

from apify_client import ApifyClient

# Initializing the ApifyClient with your API token
client = ApifyClient('apify_api_jeZW0VGgVfWHQSfbxFrLB7dDenujz900JumS')

# Function to retrieve the latest dataset items
def get_latest_dataset_items(dataset_id):
    dataset_client = client.dataset(dataset_id)
    items = dataset_client.list_items().items
    return {item['name']: item['price'] for item in items}

# Function to retrieve historical price data from the key-value store
def get_historical_data(kv_store_client, key='historical_prices'):
    try:
        record = kv_store_client.get_record(key)
        if record is not None:
            return record.get('value', {})
        else:
            return {}
    except Exception as e:
        print(f"Error retrieving historical data: {e}")
        return {}

# Function to save historical price data to the key-value store
def save_historical_data(kv_store_client, data, key='historical_prices'):
    try:
        kv_store_client.set_record(key, data)
    except Exception as e:
        print(f"Error saving historical data: {e}")

# Function to detect price changes
def detect_price_changes(current_data, historical_data):
    price_changes = {}
    for name, current_price in current_data.items():
        historical_price = historical_data.get(name)
        if historical_price is not None and historical_price != current_price:
            price_changes[name] = {
                'old_price': historical_price,
                'new_price': current_price,
            }
    return price_changes

# Function to retrieve the latest dataset ID from the most recent actor run
def get_latest_dataset_id(actor_id):
    actor_runs = client.actor(actor_id).runs().list().items
    if actor_runs:
        return actor_runs[-1]['defaultDatasetId']
    else:
        raise ValueError("No recent runs found for the actor.")

# Function to get or create a persistent Key-Value Store
# Function to get or create a persistent Key-Value Store
def get_or_create_kv_store(kv_store_name):
    try:
        # Use the get_or_create method to retrieve or create the key-value store
        store = client.key_value_stores().get_or_create(name=kv_store_name)
        return client.key_value_store(store['id'])
    except Exception as e:
        raise RuntimeError(f"Error accessing or creating KVS: {e}")

def main():
    # Specifying the actor ID
    actor_id = 'buzzpy/website-prices-scraper'  # Replace with your actor's ID

    try:
        # Retrieving the latest dataset ID from the most recent actor run
        dataset_id = get_latest_dataset_id(actor_id)

        # Get or create a persistent key-value store
        kv_store_name="latest-ebay-run"  # Ensure this is the name you want
        kv_store_client = get_or_create_kv_store(kv_store_name)

        # Retrieving current price data
        current_data = get_latest_dataset_items(dataset_id)

        # Retrieving historical price data
        historical_data = get_historical_data(kv_store_client)

        # Detecting price changes
        price_changes = detect_price_changes(current_data, historical_data)

        # Output detected price changes
        if price_changes:
            print('Price changes detected:')
            for name, prices in price_changes.items():
                print(f"Product {name}: {prices['old_price']} -> {prices['new_price']}")
        else:
            print('No price changes detected.')

        # Updating historical data with current prices
        historical_data.update(current_data)
        # Saving updated historical data back to the key-value store
        save_historical_data(kv_store_client, historical_data)

    except Exception as e:
        print(f"Error: {e}")

if __name__ == '__main__':
    main()

This code retrieves historical price data from the Apify Key-Value Store (KVS), compares it with the current data, and detects price changes.

If any changes are detected, the output would be similar to:

Price changes detected:
Product :  -> 

If any errors persist, double-check your dataset ID and key-value store.

Scraping prices with Apify

If you don’t want to go through the hassle of setting up your environments and writing scripts, you can use ready-made scrapers on Apify. They’re efficient no-code tools, and they’re free to try.

Some of the popular scrapers are the Walmart product detail scraper, Amazon product scraper, and Google shopping insights scraper.

For example, the following is how you can use Apify’s Walmart product details scraper to scrape information without code:

• #3. Go to Walmart.com and search for a product you’d like to track. For example, “headphones”. Then, copy the URL of the search, which should follow this format:  https://www.walmart.com/search?q=searcheditem
• #4. Head back to the scraper in Apify Console and paste the URL to the input field
• #5. Click the “Save and Start” button to run the scraper. 

The output would be something similar to this:

Summary

In this tutorial, we built a scraper for extracting prices from websites. It’s applicable to most e-commerce sites, with a few tweaks on selector elements. We also looked at how we can deploy it to Apify for better features, like automated scraping and convenient storage.

Frequently asked questions

Why scrape prices from websites?

Scraping prices from websites can be useful for 1. Market research (e.g. extracting information on pricing trends for reports. 2. Price tracking (e.g. tracking price drops for great deals on products. 3. Competitor analysis (e.g. collecting competitor pricing data to study pricing strategies).

Is price scraping legal?

Yes, scraping prices from websites is legal in many cases when the data is public. But be sure to always review a site’s robots.txt and legal policies before attempting to scrape. Learn more in Is web scraping legal?

How to scrape pricing data

To scrape pricing data, you can use one of Apify’s e-commerce scrapers. They allow you to scrape metadata from websites, such as product titles, images, brand names, and URLs, while also supporting query-based search options.

Is Python good for price scraping?

Yes, Python is good for price scraping because it offers powerful libraries like BeautifulSoup, Scrapy, and Selenium for handling different types of websites. Its simplicity and strong community support make it ideal for extracting and parsing data from websites.

What Python libraries are best for price scraping?

The best library depends on the way you use them; in general, beautifulsoup is best for simple HTML parsing (mostly for static sites), selenium is great for handling JavaScript-heavy sites, and scrapy is good for scalable and efficient crawling.