__init__() 需要 2 个位置参数，但 3 个是使用 WebDriverWait 给出的，expected_co

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？问题出在行(EC.element_to_bo_clickable)

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:Chromedriverchromedriver.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，因为它不是一个函数，而是一个类，其中初始值设定项只期望隐式自我之外的1个参数：

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(添加额外的括号(：

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

Answer 2

你缺少：()，在这个论点中：((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:Chromedriverchromedriver.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(( 在内部调用visibility_of_element_located

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

哪个叫_find_element

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

这反过来又要求find_element(self, by=By.ID, value=None)webdriver.py

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")))