当找不到信息时如何循环 'WebDriverWait' 函数？

Question

如何重复（循环）下面的代码，即使 'URL' 案例不可用？

例如，我 excel 在 Discogs.com 上有许多 URL 的音乐。

https://www.discogs.com/master/561393-The-High-School-Musical-Cast-High-School-Musical-2-Soundtrack

https://www.discogs.com/master/1338438-Zedd-Maren-Morris-Grey-The-Middle

https://www.discogs.com/master/606957-Zendaya-Zendaya

...

但是，有些行没有我想要的确切信息。（流派..）目前，代码显示“NoSuchWindowException ...错误......” 我如何忽略不可用的 URL 并重复下一个循环？

driver.get(url)
  genre = None
  try:
    WebDriverWait(driver, 5).until(EC.element_to_be_clickable((By.CSS_SELECTOR, "button#onetrust-accept-btn-handler"))).click()
    genre = [genre.text for genre in WebDriverWait(driver, 3).until(EC.visibility_of_all_elements_located((By.XPATH, "//tr/th[@scope='row' and contains(., 'Genre')]//following::td[1]//a")))]
  except selenium.common.exceptions.NoSuchElementException:

 if genre != None:
    song_url_dict_excel.iloc[i,2] = genre

Answer 1

要消除 None 类型错误，您可以应用 if else None 语句。试试这个：

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

driver = webdriver.Chrome(ChromeDriverManager().install())

url = 'https://www.discogs.com/master/561393-The-High-School-Musical-Cast-High-School-Musical-2-Soundtrack'



driver.get(url)
driver.maximize_window()
wait =  WebDriverWait(driver, 10)

button = wait.until(EC.visibility_of_element_located((By.CSS_SELECTOR, 'button#onetrust-accept-btn-handler'))).click()
genre = wait.until(EC.visibility_of_all_elements_located((By.XPATH, '(//*[@class="table_1fWaB"]/tbody/tr)[1]/td//a')))
for gen in genre:
    gen = gen.text if gen else None
    print(gen)

输出：

Electronic
Rock
Pop
Stage & Screen

当找不到信息时如何循环 'WebDriverWait' 函数？

How do I loop 'WebDriverWait' function when it cannot find an information?

python

selenium

webdriverwait