document.scrollingElement 不工作。无法向下滚动以检查元素

Question

请查看附件截图。

下面的代码仅打印屏幕截图中可见的前 4-5 行。 它没有向下滚动并检查它正在打印空格的元素。

相同的代码可以成功运行，而无需我在函数外部编写在 main 函数中编写的代码。

  def close_up(driver, actions):
        time.sleep(1)
        actions.move_to_element(wait.until(EC.element_to_be_clickable((By.XPATH, "//button[@data-dismiss='modal']"))))
        button = driver.find_element_by_xpath("//button[@data-dismiss='modal']")
        driver.execute_script("arguments[0].click();", button)
        time.sleep(1)
    
    
    def check_model_winodows(driver, actions):
        try:
            if len(driver.find_elements(By.XPATH, "(//button[@data-dismiss='modal'])[1]")) > 0:
                # print("Pop up is visible")
                close_up(driver, actions)
            else:
                print("")
        except:
            # print("Something went wrong")
            pass
        return driver, actions
    
    
    def main(hashtag):
        options = webdriver.ChromeOptions()
        options.add_argument("--disable-infobars")
        options.add_argument("--disable-notifications")
        options.add_argument("--start-maximized")
        options.add_argument("--disable-extensions")
        options.add_experimental_option("prefs", {"profile.default_content_setting_values.notifications": 2})
        options.add_argument('--window-size=1920,1080')
        options.add_experimental_option("prefs", {"profile.default_content_settings.cookies": 2})
    
        driver = webdriver.Chrome(executable_path='/home/tukaram/chromedriver', options=options)
        # driver = webdriver.Chrome(driver_path)
        driver.maximize_window()
        driver.implicitly_wait(50)
        driver.get("https://www.trackmyhashtag.com/")
        wait = WebDriverWait(driver, 10)
    
        actions = ActionChains(driver)
        wait.until(EC.visibility_of_element_located((By.ID, "search_keyword"))).send_keys(hashtag, Keys.RETURN)
    
        check_model_winodows(driver, actions)
        wait = WebDriverWait(driver, 10)
        time.sleep(3)
        button = driver.find_element_by_css_selector("a[onclick*='preview-tweets']")
        driver.execute_script("arguments[0].click();", button)
        # wait.until(EC.element_to_be_clickable((By.CSS_SELECTOR, "a[onclick*='preview-tweets']"))).click()
        check_model_winodows(driver, actions)
        total_number_of_tweet_row = len(driver.find_elements(By.XPATH, "//tbody/tr"))
        # print(total_number_of_tweet_row)
        rank = 1
        page_number = 2
        total_number_of_pages = 5
        myhashtag = {}
        for a, idx in enumerate(range(total_number_of_pages)):
            print("idx>>>>", idx)
            j = 0
            for i in range(total_number_of_tweet_row):
                check_model_winodows(driver, actions)
                elems = driver.find_elements(By.XPATH, "//tbody/tr")
                time.sleep(1)
                # final_ele = elems[j].find_element_by_xpath(".//td[2]")
                # print("code worked till here")
                name = elems[j].find_element_by_xpath(".//div[@class='tweet-name']").text
                print("name>", name)
                myhashtag['user_name'] = name
    
                userid = elems[j].find_element_by_tag_name("td").text
                userid = userid.partition('@')[2]
                userid = '@' + userid
                print("userid>", userid)
                myhashtag['user_screen_name'] = userid
    
                content = elems[j].find_element_by_xpath(".//td[2]").text
                print("content", content)
                myhashtag['content'] = content
    
                date = elems[j].find_element_by_xpath(".//td[3]").text
                print("1>>>>", date)
                date = str(date).replace("\n", " ")
                print("2>>>", date)
                date = datetime.strptime(date, '%d %b %Y %H:%M:%S %p')
                print("3>>>", date)
                date = date.strftime('%Y-%m-%dT%H:%M:%SZ')
                print("date", date)
                myhashtag['articleDate'] = date
    
                engm = elems[j].find_element_by_xpath(".//td[4]").text
                print("engagement", engm)
                myhashtag['engagement'] = engm
    
                impressions = elems[j].find_element_by_xpath(".//td[6]").text
                print("impressions", impressions)
                myhashtag['impressions'] = impressions
    
                myhashtag['rank'] = rank
                rank = rank + 1
                j = j + 1
    
                print(myhashtag)
    
                check_model_winodows(driver, actions)
            driver.execute_script(
                "var scrollingElement = (document.scrollingElement || document.body);scrollingElement.scrollTop = "
                "scrollingElement.scrollHeight;")
            wait.until(EC.element_to_be_clickable((By.XPATH, f"//a[text()='{page_number}']"))).click()
            page_number = page_number + 1
            print("Page numberrrr", page_number)
            if page_number == 7:
                break
        driver.quit()
        return driver, actions
    
    
    if __name__ == '__main__':
        for x in add_data.words:
            main(x)

add_data.py ->

words = ['India','@pakistan'] #words to crawl

Answer 1

您可能需要滚动到每一行以提取详细信息。我在代码中添加了driver.execute_script("arguments[0].scrollIntoView(true);",elems[j])，它提取了所有细节。试试这个。

    for a, idx in enumerate(range(total_number_of_pages)):
        print("idx>>>>", idx)
        j = 0
        for i in range(total_number_of_tweet_row):
            check_model_winodows(driver, actions)
            elems = driver.find_elements(By.XPATH, "//tbody/tr")
            time.sleep(1)
            # final_ele = elems[j].find_element_by_xpath(".//td[2]")
            # print("code worked till here")
            driver.execute_script("arguments[0].scrollIntoView(true);",elems[j]) # Line to be addded.
            name = elems[j].find_element_by_xpath(".//div[@class='tweet-name']").text