TF-1627 Update same_query_across_sites example

examples/compare_product_prices/README.md

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+# Example script: comparing product price across websites with AgentQL
+
+This example demonstrates how to compare product prices across websites with query_data() method.
+
+## Run the script
+
+* [Install AgentQL SDK](https://docs.agentql.com/docs/installation/sdk-installation)
+* Save this python file locally as **compare_product_prices.py**
+* Run the following command from the project's folder:
+```bash
+python3 compare_product_prices.py
+```
+
+## Play with it
+
+Install the [AgentQL Chrome DevTools extension](https://docs.agentql.com/docs/installation/chrome-extension-installation/) to play with the AgentQL query. [Learn more about the AgentQL query language](https://docs.agentql.com/docs/agentql-query/query-intro)

examples/compare_product_prices/compare_product_prices.py

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+"""This example demonstrates how to compare product prices across websites with query_data() method."""
+
+from agentql.ext.playwright.sync_api import Page
+from playwright.sync_api import sync_playwright
+
+# Set the URL to the desired website
+BESTBUY_URL = "https://www.bestbuy.com/site/nintendo-switch-oled-model-w-joy-con-white/6470923.p?skuId=6470923"
+TARGET_URL = "https://www.target.com/p/nintendo-switch-oled-model-with-white-joy-con/-/A-83887639#lnk=sametab"
+NINETENDO_URL = "https://www.nintendo.com/us/store/products/nintendo-switch-oled-model-white-set/"
+
+# Define the queries to get the product price
+PRODUCT_INFO_QUERY = """
+{
+    nintendo_switch
+    {
+        price
+    }
+}
+"""
+
+
+def print_header():
+    """Prints the header for the data table"""
+    print(f"{'Website':<25} | {'Product ':<20} | {'Price ':<20} ")
+    print("-" * 75)
+
+
+def print_row(website, product, price):
+    """Prints the data row"""
+    print(f"{website:<25} | {product:<20} | {price:<20} ")
+
+
+def main():
+    print_header()
+
+    with sync_playwright() as playwright:
+        browser = playwright.chromium.launch(headless=False)
+
+        # Create a new AgentQL page instance in the browser for web interactions
+        page: Page = browser.new_page()  # type: ignore
+
+        page.goto(BESTBUY_URL)
+
+        # Use query_data() method to fetch the price from the BestBuy page
+        response = page.query_data(PRODUCT_INFO_QUERY)
+
+        print_row("BestBuy", "Nintendo Switch", response["nintendo_switch"]["price"])
+
+        page.goto(NINETENDO_URL)
+
+        # Use query_data() method to fetch the price from the Nintendo page
+        response = page.query_data(PRODUCT_INFO_QUERY)
+
+        print_row("Nintendo site", "Nintendo Switch", response["nintendo_switch"]["price"])
+
+        page.goto(TARGET_URL)
+
+        # Use query_data() method to fetch the price from the Target page
+        response = page.query_data(PRODUCT_INFO_QUERY)
+
+        print_row("Target", "Nintendo Switch", response["nintendo_switch"]["price"])
+
+        browser.close()
+
+
+if __name__ == "__main__":
+    main()