Check if radio button is selected in Selenium

Selenium Python - Check if radio button is selected

In this tutorial, you will learn how to check if a radio button is selected in a group of related radio buttons using Selenium in Python.

To check if a radio button is selected in Selenium Python, find the radio button in the group which has been checked using XPath expression using find_element() method. If the method throws NoSuchElementException, then we can say that no radio button in the group has been selected. We can use try-except around find_element() method.

In the following code snippet, we use Python try except to check if any radio button is selected in the group of radio buttons with the name='radio-group-name' is

try:
    driver.find_element(By.XPATH, "//input[@type='radio' and @name='radio-group-name' and @checked]")
    print("Radio button is selected.")
except NoSuchElementException:
    print("Radio button is not selected.")

In the above XPath expression

//input returns all the elements with input tag.
@type='radio' filters only those elements that are radio buttons.
@name='radio-group-name' filters only those radio buttons whose name attribute has a value equal to 'radio-group-name'.
@checked further filters only those radio buttons that are checked.
driver.find_element() returns the first radio button from the filtered list.

You can get the value of the radio button using the following code.

selected_value = radio_button.get_attribute("value")

Examples

1. Example where Radio button is selected

In this example, we shall consider loading the HTML file at URL: /tmp/selenium/index-17.html. The contents of this HTML file is given below.

This webpage has a radio group for selecting your favorite subject, and the radio button with value="Mathematics" has already been checked in the HTML using checked attribute.

index.html

<html>
 <body>
  <h3>My Favourite Subject</h3>
  <form action="">
    <input type="radio" id="physics" name="fav_subject" value="Physics">
    <label for="physics">Physics</label><br>
    <input type="radio" id="mathematics" name="fav_subject" value="Mathematics" checked>
    <label for="mathematics">Mathematics</label><br>
    <input type="radio" id="chemistry" name="fav_subject" value="Chemistry">
    <label for="chemistry">Chemistry</label>
  </form>
 </body>
</html>

Check if radio button is selected given radio button is selected

In the following program, we initialize a webdriver, navigate to a specific URL (index.html) that is running on a local server, and get the radio button with name equal to "fav_subject" and attribute checked.

We shall surround the code to get radio button in a Python try except statement to check if a radio button is selected or not. We shall print the result to standard output.

Python Program

from selenium import webdriver
from webdriver_manager.chrome import ChromeDriverManager
from selenium.webdriver.chrome.service import Service as ChromeService
from selenium.webdriver.common.by import By
from selenium.common.exceptions import NoSuchElementException

# Setup chrome driver
driver = webdriver.Chrome(service=ChromeService(ChromeDriverManager().install()))
driver.set_window_size(500, 400)

# Navigate to the url
driver.get('/tmp/selenium/index-17.html')

# Get the selected radio button
try:
    radio_button = driver.find_element(By.XPATH, "//input[@type='radio' and @name='fav_subject' and @checked]")
    print("Radio button is selected.")
except NoSuchElementException:
    # Exception occurs if there is no selected radio button
    print("Radio button is not selected.")

# Close the driver
driver.quit()

Output

Radio button is selected.

2. Example where Radio button is not selected

In this example, we shall consider loading the HTML file at URL: /tmp/selenium/index-16.html. The contents of this HTML file is given below.

In this webpage, radio group is present, and no radio button is selected.

index.html

<html>
 <body>
  <h3>My Favourite Subject</h3>
  <form action="">
    <input type="radio" id="physics" name="fav_subject" value="Physics">
    <label for="physics">Physics</label><br>
    <input type="radio" id="mathematics" name="fav_subject" value="Mathematics">
    <label for="mathematics">Mathematics</label><br>
    <input type="radio" id="chemistry" name="fav_subject" value="Chemistry">
    <label for="chemistry">Chemistry</label>
  </form>
 </body>
</html>

Check if radio button is selected given radio button is not selected

Python Program

from selenium import webdriver
from webdriver_manager.chrome import ChromeDriverManager
from selenium.webdriver.chrome.service import Service as ChromeService
from selenium.webdriver.common.by import By
from selenium.common.exceptions import NoSuchElementException

# Setup chrome driver
driver = webdriver.Chrome(service=ChromeService(ChromeDriverManager().install()))
driver.set_window_size(500, 400)

# Navigate to the url
driver.get('/tmp/selenium/index-16.html')

# Get the selected radio button
try:
    radio_button = driver.find_element(By.XPATH, "//input[@type='radio' and @name='fav_subject' and @checked]")
    print("Radio button is selected.")
except NoSuchElementException:
    # Exception occurs if there is no selected radio button
    print("Radio button is not selected.")

# Close the driver
driver.quit()

Output

Radio button is not selected.

Summary

In this Python Selenium tutorial, we have given instructions on how to check if a radio button is selected or not, with example programs.