Python和Selenium对浏览器窗口进行处理的代码实例

# coding = utf-8
from selenium import webdriver
from time import sleep

driver = webdriver.Chrome()
driver.implicitly_wait(10)
driver.get('https://www.baidu.com')

first_window_handle = driver.current_window_handle #获取当前（百度首页）的窗口句柄
print('now handle is : ',first_window_handle) #打印百度首页窗口句柄

driver.find_element_by_id('jgwab').click() #点击打开新窗口
second_window_handle = driver.current_window_handle #再获取一次窗口句柄并打印
print('and now handle is : ', second_window_handle) 
all_handles = driver.window_handles #获取所有窗口句柄
sleep(2)
for window in all_handles:
    if window != first_window_handle:
        print('and and now handle is : ', window)
        driver.switch_to.window(window) #切换到非百度首页的窗口
        driver.close() #关闭该窗口
sleep(2)

try:
    driver.find_element_by_id('kw').send_keys('test') #关闭窗口后操作百度首页元素
    driver.find_element_by_id('su').click()
except Exception as msg:
    print('error: ', msg) #如果有错误，打印错误信息
finally:
    driver.switch_to.window(first_window_handle) #切换到百度首页后再操作
    driver.find_element_by_id('kw').send_keys('try again')
    driver.find_element_by_id('su').click()
    sleep(2)
    driver.quit()

now handle is :  CDwindow-6CF04CE58FCA5EA42EC453509FFDF773
and now handle is :  CDwindow-6CF04CE58FCA5EA42EC453509FFDF773
and and now handle is :  CDwindow-C6EDDF33CAA9BC9330585B2DCB8A664B
error:  Message: no such window: target window already closed
from unknown error: web view not found
  (Session info: chrome=69.0.3497.92)
  (Driver info: chromedriver=...