Selenium - wait until element is present, visible and interactable

Question

I have a selenium script (python) that clicks a reply button to make the class anonemail appear. The time it takes for the class anonemail to appear varies. Because of that

Answer 1

You can use waits. Check for more info on this link: selenium waits

On the example bellow we are waiting 10 seconds for the element to be visible, using the function visibility_of_element_located.

driver = webdriver.Firefox()
driver.get("http://somedomain/url_that_delays_loading")
try:
    element = WebDriverWait(driver, 10).until(
        EC.visibility_of_element_located((By.ID, "myDynamicElement"))
    )
finally:
    driver.quit()