Selenium webdriver从上一页查找元素，而不是从当前页查找元素

Question

我试图自动化YouTube搜索，点击搜索结果，然后跟随右侧的推荐视频。我写的代码进入youtube，进行搜索，点击视频，视频就会在浏览器上打开。但是，我不能带它点击其中一个推荐的视频。

问题似乎在于，当我使用refromended_videos=driver.find_elements_by_id（“video-title”）从右边获取推荐视频元素的列表时，我得到的是上一页的列表（当我第一次输入单词并获得搜索结果时）。

当我使用driver.get(url)直接转到视频链接时，代码确实可以正常工作，而不是先进行搜索。

from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC
import time
import random

seed = 1
random.seed(seed)

driver = webdriver.Firefox()
driver.get("http://www.youtube.com/")

element = driver.find_element_by_tag_name("input")

# Put the word "history" in the search box and hit enter
element.send_keys("history")
element.send_keys(Keys.RETURN)

time.sleep(5)

# Get a list of elements (videos) that get returned by the search
search_results = driver.find_elements_by_id("video-title")

# Click randomly on one of the first five results
search_results[random.randint(0,4)].click()

# Go to the end of the page (I don't know if this is necessary
html = driver.find_element_by_tag_name('html')
html.send_keys(Keys.END)

time.sleep(10)

# Get the recommended videos the same way as above. This is where the problem starts, because recommended_videos essentially becomes the same thing as the previous page's search_results, even though the browser is in a new page now.

recommended_videos = driver.find_elements_by_id("video-title") 

recommended_videos[random.randint(0,4)].click()

所以当我点击（最后一行）时，我得到了错误

ElementNotInteractableException: Element <a id="video-title" class="yt-simple-endpoint style-scope ytd-video-renderer" href="/watch?v=1oean5l__Cc"> could not be scrolled into view

Answer 1

from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC
import time
import random

seed = 1
random.seed(seed)

driver = webdriver.Chrome()
driver.get("https://www.youtube.com")

element = driver.find_element_by_tag_name("input")

# Put the word "history" in the search box and hit enter
element.send_keys("history")
element.send_keys(Keys.RETURN)

time.sleep(5)

# Get a list of elements (videos) that get returned by the search
search_results = driver.find_elements_by_id("video-title")

# Click randomly on one of the first five results
search_results[random.randint(0,10)].click()

# Go to the end of the page (I don't know if this is necessary

#
time.sleep(4)

# Get the recommended videos the same way as above. This is where the problem starts, because recommended_videos essentially becomes the same thing as the previous page's search_results, even though the browser is in a new page now.
while True:
    recommended_videos = driver.find_elements_by_xpath("//*[@id='dismissable']/div/a")
    print(recommended_videos)
    recommended_videos[random.randint(1,4)].click()
    time.sleep(4)

我也是全新的，谢谢你给我硒的兴趣。愿此代码对您有所帮助。如果需要，请将驱动程序改为firefox。