init() 采用 2 个位置参数，但 3 个是使用 WebDriverWait 和 expected_conditions 作为 element_to_be_clickable 和 Selenium Python 给出的

Question

我看到了类似的问题，但就我而言，我的代码中甚至没有 "init" 函数。如何解决这个问题呢？问题出在 (EC.element_to_bo_clickable)

行

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

driver = webdriver.Chrome(executable_path="C:\Chromedriver\chromedriver.exe")
driver.implicitly_wait(1)
driver.get("https://cct-103.firebaseapp.com/")

element = WebDriverWait(driver, 1).until
(EC.element_to_be_clickable(By.CLASS_NAME, "MuiButton-label"))

element.click()

Answer 1

根据定义，element_to_be_clickable() 应该在 tuple 中调用，因为它不是函数，而是 class，其中初始化程序只需要 1 参数，超出 implicit self :

class element_to_be_clickable(object):
    """ An Expectation for checking an element is visible and enabled such that you can click it."""
    def __init__(self, locator):
        self.locator = locator

    def __call__(self, driver):
        element = visibility_of_element_located(self.locator)(driver)
        if element and element.is_enabled():
            return element
        else:
            return False

所以代替：

element = WebDriverWait(driver, 1).until(EC.element_to_be_clickable(By.CLASS_NAME, "MuiButton-label"))

您需要（添加一个额外的括号）：

element = WebDriverWait(driver, 1).until((EC.element_to_be_clickable(By.CLASS_NAME, "MuiButton-label")))

Answer 2

您缺少：()，在此参数中：((By.CLASS_NAME, "MuiButton-label"))。

试试下面的代码：

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

driver = webdriver.Chrome(executable_path="C:\Chromedriver\chromedriver.exe")
driver.get("https://cct-103.firebaseapp.com/")

element = WebDriverWait(driver, 5).until(EC.element_to_be_clickable((By.CLASS_NAME, "MuiButton-label")))
element.click()

Answer 3

element_to_be_clickable() 内部调用 visibility_of_element_located

def __call__(self, driver):
    element = visibility_of_element_located(self.locator)(driver)

哪个调用_find_element

def __call__(self, driver):
    try:
        return _element_if_visible(_find_element(driver, self.locator))

进而在webdriver.py

中调用find_element(self, by=By.ID, value=None)

def _find_element(driver, by):
    try:
        return driver.find_element(*by)

这意味着您需要发送一个元组作为参数

element = WebDriverWait(driver, 1).until(EC.element_to_be_clickable((By.CLASS_NAME, "MuiButton-label")))

init() 采用 2 个位置参数，但 3 个是使用 WebDriverWait 和 expected_conditions 作为 element_to_be_clickable 和 Selenium Python 给出的

init() takes 2 positional arguments but 3 were given using WebDriverWait and expected_conditions as element_to_be_clickable with Selenium Python

python

selenium

webdriver

selenium-webdriver

webdriverwait

__init__() 采用 2 个位置参数，但 3 个是使用 WebDriverWait 和 expected_conditions 作为 element_to_be_clickable 和 Selenium Python 给出的

__init__() takes 2 positional arguments but 3 were given using WebDriverWait and expected_conditions as element_to_be_clickable with Selenium Python

python

selenium

webdriver

selenium-webdriver

webdriverwait

init() 采用 2 个位置参数，但 3 个是使用 WebDriverWait 和 expected_conditions 作为 element_to_be_clickable 和 Selenium Python 给出的

init() takes 2 positional arguments but 3 were given using WebDriverWait and expected_conditions as element_to_be_clickable with Selenium Python