Python 3.x Python-Selenium XPATH查询不匹配

我已经使用Chrome SelAssist扩展测试了一个XPATH查询，它运行得非常好。 语法为“/*[@id=“fbPhotoSnowliftTimestamp”]/a/abbr:

我已经开始编写python代码来检测这样的元素：

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.common.keys import Keys

chrome_profile = r"C:\Users\XXX\AppData\Local\Google\Chrome\User Data"

options = webdriver.ChromeOptions()

options.add_argument('user-data-dir=' + chrome_profile)

w = webdriver.Chrome(executable_path="C:\\Projects\\selenium\\chromedriver.exe", chrome_options=options)
w.get('https://website.com')    

test = w.find_element(By.XPATH, "//*[@id=\"fbPhotoSnowliftTimestamp\"]/a/abbr")

页面加载良好，和我手动测试的页面完全相同。 很遗憾，我继续检索此错误：

raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.NoSuchElementException: Message: no such element: Unable to locate element: {"method":"xpath","selector":"//*[@id="fbPhotoSnowliftTimestamp"]/a/abbr"}
  (Session info: chrome=80.0.3987.149)

我不知道我做错了什么。

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谢谢您的建议。

页面加载速度可能没有预期的快。如果使用下面的方法找不到xpath，将引发超时异常。尝试：

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

chrome_profile = r"C:\Users\XXX\AppData\Local\Google\Chrome\User Data"

options = webdriver.ChromeOptions()

options.add_argument('user-data-dir=' + chrome_profile)

w = webdriver.Chrome(executable_path="C:\\Projects\\selenium\\chromedriver.exe", chrome_options=options)
w.get('https://website.com')    

test = WebDriverWait(w, 10).until(EC.visibility_of_element_located((By.XPATH, "//*[@id=\"fbPhotoSnowliftTimestamp\"]/a/abbr")))
#w.find_element(By.XPATH, "//*[@id=\"fbPhotoSnowliftTimestamp\"]/a/abbr")