单击Python selenium超时异常时没有消息

Question

我想在ScienceDirect中搜索特定的单词，当is显示结果时，我想单击页面底部的每页100个结果。

HTML代码：

<a class="anchor" data-aa-region="srp-pagination-options" data-aa-name="srp-100-results-per-page" href="/search?qs=Python&amp;show=100"><span class="anchor-text">100</span></a>

这是我的密码：

from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.common.by import By
from selenium.webdriver.support.wait import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

driver = webdriver.Chrome()
driver.get("https://www.sciencedirect.com/")
assert "Science" in driver.title
elem = driver.find_element(By.ID, "qs-searchbox-input")
elem.clear()
elem.send_keys("Python")
elem.send_keys(Keys.RETURN)
assert "No results found." not in driver.page_source
element = WebDriverWait(driver, 10).until(
    EC.element_to_be_clickable((By.CSS_SELECTOR, ".data-aa-name[value='srp-100-results-per-page']"))
)
element.click()
driver.close()

和例外情况：

Traceback (most recent call last):
  File "X:\pythonProject\selenium\count_cited.py", line 15, in <module>
    element = WebDriverWait(driver, 10).until(
  File "X:\pythonProject\selenium\venv\lib\site-packages\selenium\webdriver\support\wait.py", line 95, in until
    raise TimeoutException(message, screen, stacktrace)
selenium.common.exceptions.TimeoutException: Message: 

Answer 1

例如，使用此CSS选择器：

 "div#srp-pagination-options li:nth-child(3)"