Selenium—有时只发送send_keys

Question

我正在尝试制作一个脚本来登录Facebook，通过搜索栏导航到特定网页，然后点击顶部结果；但是，脚本并不总是在搜索栏中发送关键字，而是失败了。知道为什么会发生这种事吗？

我遇到的另一个困难是找到通往顶部搜索结果的正确路径。我尝试过许多不同的By.函数，如标记名、类和x路径，但似乎都不起作用。非常感谢您的帮助。

from ast import Return
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
import time
driver = webdriver.Chrome("C:/Users/Carson/Desktop/chromedriver.exe")
driver.get("https://www.facebook.com/")

try:
username = WebDriverWait(driver, 7).until(
EC.presence_of_element_located((By.ID,'email')))

username.send_keys("username")
password = driver.find_element(By.ID, 'pass')
password.send_keys("password")
try:
driver.find_element(By.TAG_NAME, "button").click()
driver.find_element(By.XPATH, '/html/body/div[1]/div[1]/div[1]/div/div[2]/div[2]/div/div/div/div/div/label/input').click()
#clicks the search key and searches by send_keys 
search = driver.find_element(By.XPATH,'/html/body/div[1]/div[1]/div[1]/div/div[2]/div[2]/div/div/div/div/div/label/input')
search.click()
search.send_keys('The Village At Gracy Farms')
search.send_keys(Keys.RETURN)
print("nicee")

except:
print("failedddd")
driver.quit(77)
except:
print("failed")
driver.quit(22)    

Answer 1

Facebook主页上的搜索框元素是一个动态元素，因此理想情况下，向需要诱导WebDriver的元素发送字符序列。等待元素_to_be_clickle((，您可以使用以下定位器策略之一：

• 使用CSS_SELECTOR：

  WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.CSS_SELECTOR, "input[placeholder='Search Facebook'][aria-label='Search Facebook'][aria-label='Search Facebook']"))).send_keys("The Village At Gracy Farms")
  

• 使用XPATH:

  WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, "//input[@placeholder='Search Facebook' and @aria-label='Search Facebook'][@aria-expanded='true']"))).send_keys("The Village At Gracy Farms")
  

• 注意：您必须添加以下导入：

  from selenium.webdriver.support.ui import WebDriverWait
  from selenium.webdriver.common.by import By
  from selenium.webdriver.support import expected_conditions as EC