[Python] Selenium script for Amazon UK postcode entry triggers CAPTCHA and fails to apply zip...

Automating Amazon UK with Selenium: Handling CAPTCHA, Setting Postcode, and Extracting Product Data


I'm automating Amazon UK (www.amazon.co.uk) using Selenium to:

1. Decline cookies (if present).
2. Click the address block to open the postcode modal.
3. Enter a postcode (e.g., "EC1A 1BB") and apply it.

Issues:

• Triggers a CAPTCHA after clicking the cookie decline button. The script does not proceed to change the address/postcode elements.
• Fails to apply the postcode (no error, but the page doesn't update).

My Script


from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
import time

# Create Chrome Options Object
options = webdriver.ChromeOptions()

# Set window size and add other configuration options
options.add_argument("--window-size=1920,1080")
options.add_argument("--disable-extensions")
options.add_argument("--disable-popup-blocking")
options.add_argument("--disk-cache-size=1")
options.add_argument("--disable-blink-features=AutomationControlled")
options.add_experimental_option("excludeSwitches", ["enable-automation"])

# Initialize Driver
driver = webdriver.Chrome(options=options)

try:
driver.get("https://www.amazon.co.uk")
wait = WebDriverWait(driver, 10)

# Handle cookies (Decline if present)
try:
decline_btn = wait.until(EC.element_to_be_clickable((By.ID, "sp-cc-rejectall-link")))
decline_btn.click()
except Exception:
print("Cookie decline button not found or already handled.")

# Click address block to open the postcode modal
address_block = wait.until(EC.element_to_be_clickable((By.ID, "GLUXAddressBlock")))
address_block.click()

# Enter the postcode
postcode_field = wait.until(EC.presence_of_element_located((By.ID, "GLUXZipUpdateInput")))
postcode_field.clear()
postcode_field.send_keys("EC1A 1BB")

# Apply postcode using JavaScript click
apply_button = wait.until(EC.element_to_be_clickable((By.XPATH, "//input[@aria-labelledby='GLUXZipUpdate-announce']")))
driver.execute_script("arguments[0].click();", apply_button)

# Short wait for address update
time.sleep(1.5)

except Exception as e:
print("Error:", e)
finally:
driver.quit()

What I’ve Tried:

• Added --disable-blink-features=AutomationControlled and excludeSwitches to Chrome options.
• Used explicit waits (WebDriverWait) for elements.
• Executed JavaScript clicks to avoid interception.

Questions:

1. How can I avoid CAPTCHA detection in Selenium for Amazon?
2. How to implement product search after the postcode update?
3. How to extract product data (e.g., XPath/CSS selectors) and save it to CSV?
4. Search for "earphones", extract product titles, prices, and URLs into a CSV.

Would appreciate any insights!

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