how to hover mouse in selenium python code example

Example: python selenium hover over element

from selenium import webdriver
from selenium.webdriver.common.action_chains import ActionChains

driver = webdriver.Firefox()
driver.get('http://example.com')
element_to_hover_over = firefox.find_element_by_id("foo")

# actual hover
ActionChains(driver).move_to_element(element_to_hover_over).perform()