Selenium Python bindings: how to execute javascript on an element?

Question

Used python selenium script to start selenium server to run JavaScript code. It works great.

drv.execute_script('<some js code>') 

However, I cannot figure out how to run javascript code for an element that was obtained using get_element_by _ * () api. For example, I

 ele = get_element_by_xpath('//button[@id="xyzw"]'); #question: how do I change the "style" attribute of the button element? 

If I were on the browser developer console, I can run it as

 ele = $x('//button[@id="xyzw"]')[0] ele.setAttribute("style", "color: yellow; border: 2px solid yellow;") 

Just don't know how to do this in python selenium script. Thanks in advance.

Answer 1

execute_script takes arguments, so you can pass an element:

 drv.execute_script('arguments[0].setAttribute("style", "color: yellow; border: 2px solid yellow;")', ele) 

Answer 2

Thanks to @ Richard's answer, which led me in the right direction and Brian's link (even thought about it for java), who helped me sort out the meaning of “arguments”.

The following code will do what I need.

 ele = get_element_by_xpath('//button[@id="xyzw"]'); drv.execute_script('arguments[0].setAttribute("style", "color: yellow; border: 2px solid yellow;")', ele)