Executing a JavaScript code in a Python webdriver: A step-by-step guide

Using Selenium 2 Python webdriver:

I encountered an issue where I needed to click on a hidden element due to a hover effect. In search of solutions to unhide and select the element, I came across the following examples:

Example in Java:

JavascriptExecutor je = (JavascriptExecutor) webDriver();

Another example:

browser.execute_script("document.getElementsByClassName('classname').style.display='block'")

However, running the above example resulted in the following exception:

selenium.common.exceptions.WebDriverException: Message: ''

I am unsure if any additional class is required for executing the javascript. Any guidance on what I might be missing would be greatly appreciated.

javascriptpythonseleniumwebdriver

Answer №1

It is important to note that the getElementsByClassName method returns an array of DOM elements. To target the first element, modify your JavaScript code to use 

document.getElementsByClassName('classname')[0].style.display='block'

Answer №2

To interact with a hidden element in Python, I am utilizing the following command:

element=driver.find_element_by_xpath("//div[2]/div/div[2]/div[1]") 
driver.execute_script("arguments[0].click();", element)

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