How to select a radio button by value in Selenium Python?

Selenium Python – Select a radio button by value

In this tutorial, you will learn how to select a radio button by value in value attribute, in Selenium Python.

To select a radio button by value in Selenium Python, form the XPath expression that the element has the following two attribute value.

type=”radio”
value=”your_value”

The XPath expression would be as shown in the following.

"//input[@name='x' and @value='your_value']"

You can use this XPath expression with find_element() method of driver object, and find the radio button with a specific value for value attribute.

radio_button = driver.find_element("//input[@name='x' and @value='your_value']")

After finding the radio button, call click() method on the radio button WebElement object.

radio_button.click()

Example

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

The webpage has a radio group for selecting a favorite subject.

<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>

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In the following program, we initialize a webdriver, navigate to a specified URL, get the radio button with value equal to "Chemisty", and call click() method on the radio button element.

We shall take screenshots before and after selecting the radio button.

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

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

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

# Take a screenshot
driver.save_screenshot("screenshot-1.png")

# Get the radio button whose value="Chemistry"
radio_button = driver.find_element(By.XPATH, "//input[@type='radio' and @value='Chemistry']")

# Click the radio button
radio_button.click()

# Take a screenshot
driver.save_screenshot("screenshot-2.png")

# Close the driver
driver.quit()

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screenshot-1.png – Before selecting the radio button