How can we fetch the page source in Selenium?

Retrieving the page source code in Selenium is a straightforward process. We can use the page_source attribute of the WebDriver object to retrieve the HTML content of the current page. Here is a specific example demonstrating how to use Selenium in Python to retrieve page source code:

python
from selenium import webdriver

# Launch Chrome browser
driver = webdriver.Chrome('path to your chromedriver.exe')

# Open a webpage
driver.get('http://www.example.com')

# Retrieve page source code
page_source = driver.page_source

print(page_source)

# Close the browser
driver.quit()

In this example, the line driver.get('http://www.example.com') opens the specified URL. After that, driver.page_source returns the source code of the page displayed in the current browser. This source code is in string format and contains the complete HTML content of the page.

This method is very useful for testing webpage content, inspecting the DOM structure, or verifying the presence of specific elements. For example, you can use this method to confirm whether an important HTML tag exists in the page after it has loaded.

Finally, remember to call driver.quit() to close the browser and release resources; this is a good programming practice.