使用Selenium在網頁上處理iframe

我想使用我的腳本從 Investment.com 上的圖表中獲取一些資料，但首先我需要在資料報廢之前準備圖表（圖表最大化。打開燭臺）。我知道需要的按鈕位于 iframe 元素內。不幸的是，我的腳本找不到這些元素。我嘗試通過“frame_to_be_available_and_switch_to_it”來定位 iframe，但腳本仍然無法找到 iframe，因此無法找到所需的元素。我的代碼如下：

from selenium import webdriver
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.common.action_chains import ActionChains
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
from selenium.webdriver.support.expected_conditions import visibility_of_element_located

PATH = "C:\Program Files (x86)\chromedriver.exe"
options = Options()
options.headless = False
options.add_argument("start-maximized")
options.add_argument("disable-infobars")
options.add_argument("--disable-extensions")


driver = webdriver.Chrome(PATH, options=options)
action = ActionChains(driver)


def cookie_handling():
    driver.get("https://www.investing.com/equities/inpost-sa-as-chart")
    COOKIE_BUTTON = By.ID, 'onetrust-accept-btn-handler'
    cookie_button = WebDriverWait(driver, 5).until(EC.presence_of_element_located(COOKIE_BUTTON))
    cookie_button.click()
    print("Cookie handling finalized")


def chart_preparing():
    scroll_down = driver.find_element_by_xpath('/html/body')
    for i in range(19):
        scroll_down.send_keys(Keys.ARROW_DOWN)

    FRAME_LOCATOR = By.CLASS_NAME, "fwh mp0 no-overflow"
    WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it(FRAME_LOCATOR))

    FULLSCREEN_LOCATOR = By.CLASS_NAME, "button fullscreen iconed"
    WebDriverWait(driver, 10).until((EC.element_to_be_clickable(FULLSCREEN_LOCATOR))).click()

    CANDLE_LOCATOR = By.XPATH, "/html/body/div[1]/div[2]/div/div/div[2]/div[3]/div/div/span[1]"
    WebDriverWait(driver, 10).until((EC.element_to_be_clickable(CANDLE_LOCATOR))).click()


cookie_handling()
chart_preparing()

我收到以下錯誤：

selenium.common.exceptions.TimeoutException: Message: 

uj5u.com熱心網友回復：

好吧，那里有 3 個 iframe，而您所有的 iframe 定位器都是錯誤的。
其他定位器也應該改進。
請試試這個：

from selenium import webdriver
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.common.action_chains import ActionChains
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
from selenium.webdriver.support.expected_conditions import visibility_of_element_located

PATH = "C:\Program Files (x86)\chromedriver.exe"
options = Options()
options.headless = False
options.add_argument("start-maximized")
options.add_argument("disable-infobars")
options.add_argument("--disable-extensions")


driver = webdriver.Chrome(PATH, options=options)
action = ActionChains(driver)
wait = WebDriverWait(driver, 20)


def cookie_handling():
    driver.get("https://www.investing.com/equities/inpost-sa-as-chart")
    COOKIE_BUTTON = By.ID, 'onetrust-accept-btn-handler'
    cookie_button = WebDriverWait(driver, 5).until(EC.presence_of_element_located(COOKIE_BUTTON))
    cookie_button.click()
    print("Cookie handling finalized")


def chart_preparing():
    scroll_down = driver.find_element_by_xpath('/html/body')
    for i in range(19):
        scroll_down.send_keys(Keys.ARROW_DOWN)

    wait.until(EC.frame_to_be_available_and_switch_to_it(By.XPATH, "//iframe[@seamless and not( @class)]"))

    wait.until(EC.frame_to_be_available_and_switch_to_it(By.XPATH, "//iframe[@seamless and @class]"))
    wait.until(EC.frame_to_be_available_and_switch_to_it(By.XPATH, "//iframe[contains(@id,'tradingview')]"))

    FULLSCREEN_LOCATOR = By.CLASS_NAME, "button fullscreen iconed"
    wait.until((EC.element_to_be_clickable(FULLSCREEN_LOCATOR))).click()

    CANDLE_LOCATOR = By.XPATH, "//span[@title='Candles']"
    wait.until((EC.element_to_be_clickable(CANDLE_LOCATOR))).click()


cookie_handling()
chart_preparing()

uj5u.com熱心網友回復：

我看到您正在使用帶空格的類名。

在 Selenium 中，如果您使用這樣的類名

fwh mp0 no-overflow

你會得到 no such element exception.

使固定 ：

最好洗掉空格并放置句點而不是形成CSS SELECTOR.

FRAME_LOCATOR = By.CSS_SELECTOR, ".fwh.mp0.no-overflow"
WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it(FRAME_LOCATOR))

FULLSCREEN_LOCATOR = By.CSS_SELECTOR, ".button.fullscreen.iconed"
WebDriverWait(driver, 10).until((EC.element_to_be_clickable(FULLSCREEN_LOCATOR))).click()

CANDLE_LOCATOR = By.XPATH, "/html/body/div[1]/div[2]/div/div/div[2]/div[3]/div/div/span[1]"
WebDriverWait(driver, 10).until((EC.element_to_be_clickable(CANDLE_LOCATOR))).click()

更新 ：

我運行了你的整個代碼，我對你的發現很少。

1. 我找不到 cookie 按鈕，所以我將該代碼包裝在try-except. 因為我不確定，您可能會根據地理位置獲得 cookie 按鈕。

2. 我看到有一個視頻彈出視窗。我們也應該關閉它。

3. 有嵌套的 iframe。

所以你的有效代碼將是：

driver = webdriver.Chrome(driver_path)
driver.maximize_window()

wait = WebDriverWait(driver, 30)


def cookie_handling():
    driver.get("https://www.investing.com/equities/inpost-sa-as-chart")
    try:
        COOKIE_BUTTON = By.ID, 'onetrust-accept-btn-handler'
        cookie_button = wait.until(EC.presence_of_element_located(COOKIE_BUTTON))
        cookie_button.click()
        print("Cookie handling finalized")
    except:
        pass


def chart_preparing():
    driver.execute_script("window.scrollTo(0, 500)")

    try:
        wait.until(EC.element_to_be_clickable((By.XPATH, "//*[name()='svg' and @id='Layer_1']"))).click()
    except:
        pass

    FIRST_FRAME_LOCATOR = By.XPATH, "//iframe[starts-with(@id,'tvc_frame_')]"
    wait.until(EC.frame_to_be_available_and_switch_to_it(FIRST_FRAME_LOCATOR))

    SECOND_FRAME_LOCATOR = By.XPATH, "//iframe[starts-with(@src,'https://tvc') and not(@id)]"
    wait.until(EC.frame_to_be_available_and_switch_to_it(SECOND_FRAME_LOCATOR))

    THIRD_FRAME_LOCATOR = By.XPATH, "//iframe[starts-with(@src,'https://tvc') and contains(@id,'tradingview')]"
    wait.until(EC.frame_to_be_available_and_switch_to_it(THIRD_FRAME_LOCATOR))

    CANDLE_LOCATOR = By.XPATH, "//div[@class='quick']/span"

    wait.until((EC.element_to_be_clickable(CANDLE_LOCATOR))).click()


cookie_handling()
chart_preparing()

進口：

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

標籤：Python 硒 硒网络驱动程序 内嵌框架

上一篇：使用Selenium和Python定位具有動態ID的元素

下一篇：Pythonselenium-如何運行SeleniumPythonUnittest