WebDriverWait used in conjunction with expected_conditions

expected_conditions determine page elements

• demo2

from selenium import webdriver
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.common.by import By
import time
 
driver = webdriver.Chrome()
driver.get("http://www.baidu.com/")
locator = (By.ID,"kw")
 
try:
    ele = WebDriverWait(driver,10).until(EC.presence_of_element_located(locator))
    driver.find_element_by_id("kw").send_keys('abc')
    time.sleep(1) #为了看效果
except:
    print("ele can't find")
finally:
    driver.quit()

Expected conditions expected_conditions class provides a method of determining

method	Explanation
title_is	Determining whether the current page's title exactly equal (==) expected string and returns a Boolean value
title_contains	Determine whether the current page title contains the expected string and returns a Boolean value
presence_of_element_located	Determine whether an element is added to the dom tree, does not mean that certain elements visible
visibility_of_element_located	Analyzing element is visible (visible on behalf of a non-hidden elements, and the element width and height are not equal to 0)
visibility_of	A method as above, except the parameters for the Locator a method, the method parameter is the positioning element
presence_of_all_elements_located	Determining whether there is at least one element is present in dom tree. Example: If there are elements of the class n pages are 'wp', as long as there is an element exists, the method returns True
text_to_be_present_in_element	An element of judgment text contains the expected string
text_to_be_present_in_element_value	Determine the value attribute contains an element of the expected string
frame_to_be_available_and_switch_to_it	Determine whether the frame can switch into it, if you can, and switch into returns True, otherwise it returns False
invisibility_of_element_located	Determine whether an element does not exist or is not visible in the dom tree
element_to_be_clickable	Determine whether an element is visible and clickable
staleness_of	And so an element is removed from the dom tree, note that this method also returns True or False
element_to_be_selected	Determining whether an element is selected, generally used in the drop-down list
element_selection_state_to_be	Determine whether an element selected in line with expectations
element_located_selection_state_to_be	The role of the above method with the same, but the above method to the incoming positioning element, and this method pass locator
alert_is_present	Determine whether there is a page on alert