Selenium 无法以任何方式找到元素

Question

我正在尝试使用 python 代码填写登录表单。 为此，我需要单击提交作为最后一步。

但是 Selenium 找不到提交按钮，无论是通过 ID、类、CSS 选择器还是名称。

这是我的完整代码

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
import time

website_link = "https://wildfall.net/wp-admin/"
username = "xxxx"
password = "xxxx"

element_for_username = "user_login"
element_for_password = "user_pass"
element_for_submit = "wp-submit"

browser = webdriver.Chrome()
browser.get((website_link))

time.sleep(5)

username_element = browser.find_element(By.ID, element_for_username)
username_element.send_keys(username)
password_element = browser.find_element(By.ID, element_for_password)
password_element.send_keys(password)
WebDriverWait(browser, 10).until(EC.frame_to_be_available_and_switch_to_it((By.CSS_SELECTOR,"iframe[name^='a-'][src^='https://www.google.com/recaptcha/api2/anchor?']")))
WebDriverWait(browser, 10).until(EC.element_to_be_clickable((By.XPATH, "//span[@class='recaptcha-checkbox goog-inline-block recaptcha-checkbox-unchecked rc-anchor-checkbox']/div[@class='recaptcha-checkbox-border']"))).click()
time.sleep(10)
submit_element = browser.find_element(By.ID, element_for_submit)
submit_element.click()

发生错误的部分

submit_element = browser.find_element(By.ID, element_for_submit)
submit_element.click()

这是错误

>>> submit_element = browser.find_element(By.ID, element_for_submit)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Users\x\AppData\Local\Programs\Python\Python310\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 857, in find_element
    return self.execute(Command.FIND_ELEMENT, {
  File "C:\Users\x\AppData\Local\Programs\Python\Python310\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 435, in execute
    self.error_handler.check_response(response)
  File "C:\Users\x\AppData\Local\Programs\Python\Python310\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 247, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.NoSuchElementException: Message: no such element: Unable to locate element: {"method":"css selector","selector":"[id="wp-submit"]"}
  (Session info: chrome=93.0.4577.63)

我不明白为什么它找不到按钮，因为它找到了所有其他按钮。 它也不是 iframe，所以不能因此。 也许我只是没有找到正确的按钮名称/类/ID，但没有太多可供选择，所以我现在迷路了。

Answer 1

你切换到 iframe，你必须切换回来。 尝试使用：

driver.switch_to.default_content()

Answer 2

正如@facuew正确指出的那样，单击 reCAPTCHA 复选框后，要单击元素Anmelden ，您必须切换到默认内容。

您优化的代码块可以是：

driver.get('https://wildfall.net/wp-admin/')
WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.CSS_SELECTOR, "input#user_login"))).send_keys("username@stackoverflow.com")
driver.find_element(By.CSS_SELECTOR, "input#user_pass").send_keys("simplyGamic")
WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it((By.CSS_SELECTOR,"iframe[title=reCAPTCHA]")))
WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.CSS_SELECTOR, "div.recaptcha-checkbox-border"))).click()
driver.switch_to.default_content()
WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.CSS_SELECTOR, "input#wp-submit"))).click()

浏览器快照：