Filling Forms Using Selenium and Python

Web forms are a fundamental part of any website — whether it’s a login screen, contact page, or signup form. Automating form filling can be incredibly useful for testing, data entry, or scraping purposes. Selenium, a powerful browser automation tool, combined with Python, offers a seamless way to interact with form fields just like a human user would.

In this blog post, we’ll walk through how to fill out and submit forms using Selenium and Python, covering input fields, dropdowns, radio buttons, checkboxes, and more.


Prerequisites

Before we dive in, make sure you have the following installed:

  • Python (3.x)
  • Selenium (pip install selenium)
  • A WebDriver (e.g., ChromeDriver for Google Chrome)

Here’s a basic setup:


python

from selenium import webdriver

from selenium.webdriver.common.by import By

from selenium.webdriver.common.keys import Keys


driver = webdriver.Chrome()  # Ensure chromedriver is in your PATH

driver.get("https://example.com/form")


Filling Text Input Fields

To fill out text boxes like username, email, or passwords, locate the input field using find_element and use the send_keys() method:

python


username = driver.find_element(By.NAME, "username")

username.send_keys("testuser")


email = driver.find_element(By.ID, "email")

email.send_keys("user@example.com")

You can also clear an input field using clear():


python


username.clear()

username.send_keys("newuser")

Selecting Radio Buttons and Checkboxes

To select a radio button or checkbox, locate the element and use .click():


python


gender_male = driver.find_element(By.ID, "gender_male")

gender_male.click()


subscribe_checkbox = driver.find_element(By.NAME, "subscribe")

if not subscribe_checkbox.is_selected():

    subscribe_checkbox.click()

Handling Dropdowns

For dropdown menus, use the Select class from selenium.webdriver.support.ui:


python


from selenium.webdriver.support.ui import Select


country_dropdown = Select(driver.find_element(By.ID, "country"))

country_dropdown.select_by_visible_text("United States")

# Or select by value

country_dropdown.select_by_value("US")

Submitting the Form

You can submit a form by clicking a button or using the submit() method:


python


submit_button = driver.find_element(By.XPATH, "//button[@type='submit']")

submit_button.click()

Alternatively, submit the form directly:


python


form = driver.find_element(By.TAG_NAME, "form")

form.submit()

Waiting for Elements

Web forms may take time to load. Use explicit waits to make your script more reliable:


python


from selenium.webdriver.support.ui import WebDriverWait

from selenium.webdriver.support import expected_conditions as EC


wait = WebDriverWait(driver, 10)

username = wait.until(EC.presence_of_element_located((By.NAME, "username")))

Example: Full Form Automation

python


driver.get("https://example.com/signup")


driver.find_element(By.NAME, "username").send_keys("testuser")

driver.find_element(By.NAME, "email").send_keys("test@example.com")

driver.find_element(By.NAME, "password").send_keys("securepassword")

driver.find_element(By.ID, "agree_terms").click()


country = Select(driver.find_element(By.ID, "country"))

country.select_by_value("US")


driver.find_element(By.XPATH, "//button[text()='Sign Up']").click()

Conclusion

Automating form filling with Selenium and Python is straightforward and powerful. By combining element locators, input methods, and smart waiting strategies, you can interact with almost any form on the web. Whether you're testing UI flows, submitting data at scale, or scraping web portals, mastering form automation is an essential skill for any Selenium user.

With consistent practice, you can build robust automation scripts that handle complex form structures, validations, and dynamic behavior — all with the ease of Python.

Learn  Selenium with Python Training Course
Read More: Link Text and Partial Link Text Locators in Selenium


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