Selenium类型错误：__init__()获得意外的关键字参数&#39；service&#39；

问题描述

我正在将我的应用程序从过程代码重构为OOP。我正在尝试上此驱动程序类。

更新：此功能在Windows中可用，但在Mac中不可用。

# IMPORTS
from sys import platform
import os
from os import system

from selenium import webdriver
from selenium.webdriver import Firefox, FirefoxOptions
from selenium.common.exceptions import NoSuchElementException
from selenium.webdriver.common.keys import Keys
from selenium.common.exceptions import TimeoutException
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.common.by import By
# import Action chains 
from selenium.webdriver.common.action_chains import ActionChains
from selenium.webdriver.support.ui import Select
from selenium.webdriver.firefox.service import Service

class Driver():
    def __init__(self):
        #set executable path to driver
        self.dirname = os.path.dirname(__file__)
        if platform == "win32":
            self.executable_path = os.path.join(self.dirname, 'geckodriver.exe') #must save the gecko file to same directory where python is. path to geckodriver (firefox drive/motor) on your machine
            print("Gecko (Firefox) filepath is: ", self.executable_path)
        if platform == "darwin":
            self.executable_path = os.path.join(self.dirname, 'geckodriver') #must save the gecko file to same directory where python is. path to geckodriver (firefox drive/motor) on your machine
            print("Gecko (Firefox) filepath is: ", self.executable_path)
            
        self.service = Service(self.executable_path) 
            
        self.opts = FirefoxOptions()
        #self.opts.add_argument(f"--width={int(screen_width/4)}")
        #self.opts.add_argument(f"--height={int(screen_height/2)}")

        self.driver = Firefox(service=self.service, options=self.opts)
        
        self.driver.set_window_position(-10, 0)
        
        self.driver.get("https://google.com/")
    
Driver()

这将显示以下错误：

Traceback (most recent call last):
  File "/driverClass.py", line 72, in <module>
    Driver()
  File "/driverClass.py", line 66, in __init__
    self.driver = Firefox(service=self.service, options=self.opts)
TypeError: __init__() got an unexpected keyword argument 'service'

为什么会这样？我正在将我的代码重构为面向对象程序设计(OOP)。该代码以前在使用过程代码时起作用。

这来自工作代码：

# driver configs
service = Service(executable_path) #pass in path to geckodriver
opts = FirefoxOptions()
#opts.add_argument(f"--width={int(screen_width/4)}")
#opts.add_argument(f"--height={int(screen_height/2)}")
driver = Firefox(service=service, options=opts)

driver.set_window_position(-10, 0)
#driver.set_window_size(int(screen_width/4), int(screen_height))

driver.get("https://google.com/")

---

解决方案

此错误消息.

TypeError: __init__() got an unexpected keyword argument 'service'

.表示service是意外的关键字参数。

可能的原因，您仍在使用Seleniumv3.x和关键字参数service 不受支持。

---

解决方案

自Selenium 4.0 Beta 1起：

不推荐使用驱动程序实例化中除Options和Service参数之外的所有参数。(#9125，#9128)

因此您需要升级到Selenium 4.x

---

引用

您可以在以下位置找到几个相关的详细讨论：

• TypeError: init() got an unexpected keyword argument 'service' error using Python Selenium ChromeDriver with company pac file