Question

在YouTube上，我想搜索某些视频（即Python上的视频），然后，我想返回此搜索返回的所有视频。如果现在，我尝试使用此Python返回搜索页面上而不是搜索后页面上的所有视频。

当前代码：

from selenium import webdriver
from webdriver_manager.chrome import ChromeDriverManager

driver = webdriver.Chrome(ChromeDriverManager().install())
driver.get("http://youtube.com")
driver.find_element_by_name("search_query").send_keys("Python")
driver.find_element_by_id("search-icon-legacy").click()
links = driver.find_elements_by_id("video-title")
for x in links:
    print(x.get_attribute("href"))

这里出了什么问题？

Answer 1

但是最好使用明确的等待方式：

links = ui.WebDriverWait(driver, 10).until(EC.presence_of_all_elements_located((By.ID, "video-title")))

Reference。

希望对您有帮助！

Answer 2

根据与@Mark的讨论：

Youtube第一页的元素似乎仍在DOM中...

我看到的唯一解决方法是转到搜索URL：

driver.get("http://youtube.com/results?search_query=Python")
# driver.find_element_by_name("search_query").send_keys("Python")
# driver.find_element_by_id("search-icon-legacy").click()

您应该使用WebDriverWait不睡觉：

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

from selenium.webdriver.chrome.options import Options

opt = Options()
opt.add_argument("--incognito")

driver = webdriver.Chrome(executable_path=r'C:\path\to\chromedriver.exe', chrome_options=opt)
driver.get("http://youtube.com")
driver.find_element_by_name("search_query").send_keys("Python")
driver.find_element_by_id("search-icon-legacy").click()
WebDriverWait(driver, 10).until(EC.presence_of_all_elements_located((By.ID, "video-title")))
links = driver.find_elements_by_id("video-title")

for x in links:

    print(x.get_attribute("href"))

输出：

https://www.youtube.com/watch?v=rfscVS0vtbw
https://www.youtube.com/watch?v=f79MRyMsjrQ
https://www.youtube.com/watch?v=kLZuut1fYzQ
https://www.youtube.com/watch?v=N4mEzFDjqtA
https://www.youtube.com/watch?v=Z1Yd7upQsXY
https://www.youtube.com/watch?v=hnDU1G9hWqU
https://www.youtube.com/watch?v=3cZsjOclmoM
https://www.youtube.com/watch?v=f3EbDbm8XqY
https://www.youtube.com/watch?v=2uCXIbkbDSE
https://www.youtube.com/watch?v=HXV3zeQKqGY
https://www.youtube.com/watch?v=JJmcL1N2KQs
https://www.youtube.com/watch?v=qiSCMNBIP2g
https://www.youtube.com/watch?v=7lmCu8wz8ro
https://www.youtube.com/watch?v=25ovCm9jKfA
https://www.youtube.com/watch?v=q6Mc_sAPZ2Y
https://www.youtube.com/watch?v=yE9v9rt6ziw
https://www.youtube.com/watch?v=Y8Tko2YC5hA
https://www.youtube.com/watch?v=G0rQ7AEl5LA
https://www.youtube.com/watch?v=CtbckFw0pJs
https://www.youtube.com/watch?v=sugvnHA7ElY

Answer 3

要使用关键字 Python 从搜索中返回所有视频，您需要：

最大化屏幕，以便在HTML DOM内呈现所有结果视频链接。
在提取 href 属性之前，诱导 WebDriverWait 以使所需的元素可见。

您可以使用以下解决方案

代码块：

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

options = webdriver.ChromeOptions()
options.add_argument("start-maximized")
options.add_argument("disable-infobars")
options.add_argument("--disable-extensions")
driver=webdriver.Chrome(chrome_options=options, executable_path=r'C:\Utility\BrowserDrivers\chromedriver.exe')
driver.get("https://www.youtube.com/")
WebDriverWait(driver, 5).until(EC.element_to_be_clickable((By.CSS_SELECTOR, "input#search"))).send_keys("Python")
driver.find_element_by_css_selector("button.style-scope.ytd-searchbox#search-icon-legacy").click()
print([my_href.get_attribute("href") for my_href in WebDriverWait(driver, 5).until(EC.visibility_of_all_elements_located((By.CSS_SELECTOR, "a.yt-simple-endpoint.style-scope.ytd-video-renderer#video-title")))])

控制台输出：

['https://www.youtube.com/watch?v=rfscVS0vtbw', 'https://www.youtube.com/watch?v=7UeRnuGo-pg', 'https://www.youtube.com/watch?v=3cZsjOclmoM', 'https://www.youtube.com/watch?v=f79MRyMsjrQ', 'https://www.youtube.com/watch?v=CtbckFw0pJs', 'https://www.youtube.com/watch?v=Z1Yd7upQsXY', 'https://www.youtube.com/watch?v=kLZuut1fYzQ', 'https://www.youtube.com/watch?v=IZ0IM_T4aio', 'https://www.youtube.com/watch?v=qiSCMNBIP2g', 'https://www.youtube.com/watch?v=N0lxfilGfak', 'https://www.youtube.com/watch?v=N4mEzFDjqtA', 'https://www.youtube.com/watch?v=s3Ejdx6cIho', 'https://www.youtube.com/watch?v=Y8Tko2YC5hA', 'https://www.youtube.com/watch?v=c3FXQU3TyCU', 'https://www.youtube.com/watch?v=yE9v9rt6ziw', 'https://www.youtube.com/watch?v=yvHrNlAF0Y0', 'https://www.youtube.com/watch?v=ZDa-Z5JzLYM']

在YouTube上搜索并返回Python中的所有链接

3 个答案: