webdriver三种等待方法
1.使用WebDriverWait
from selenium import webdriver from selenium.webdriver.common.by import By from selenium.webdriver.support.ui import WebDriverWait # available since 2.4.0 from selenium.webdriver.support import expected_conditions as EC # available since 2.26.0 driver = webdriver.Firefox() driver.get("http://somedomain/url_that_delays_loading") try: element = WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.ID, "myDynamicElement"))) finally: driver.quit() |
presence_of_element_located可以替换为
title_is title_contains presence_of_element_located visibility_of_element_located visibility_of presence_of_all_elements_located text_to_be_present_in_element text_to_be_present_in_element_value frame_to_be_available_and_switch_to_it invisibility_of_element_located element_to_be_clickable - it is Displayed and Enabled. staleness_of element_to_be_selected element_located_to_be_selected element_selection_state_to_be element_located_selection_state_to_be alert_is_present |
By.ID中的ID可替换为'CLASS_NAME', 'CSS_SELECTOR', 'ID', 'LINK_TEXT', 'NAME', 'PARTIAL_LINK_TEXT', 'TAG_NAME', 'XPATH'
2、隐式等待，相当于设置全局的等待，在定位元素时，对所有元素设置超时时间。
隐式等待使得WebDriver在查找一个Element或者Element数组时，每隔一段特定的时间就会轮询一次DOM，如果Element或数组没有马上被发现的话。
默认设置是0。
一旦设置，这个隐式等待会在WebDriver对象实例的整个生命周期起作用。
from selenium import webdriver driver = webdriver.Firefox() driver.implicitly_wait(10) # seconds driver.get(http://www.xxx.com) myDynamicElement = driver.find_element_by_id("ElementID") |
3、强制等待
import time
time.sleep(10)
