appium+python 存在多个类时，不用每次都初始化解决办法

# coding:utf-8
__author__ = '**'
'''
description:driver配置
'''
from appium import webdriver
from config.globalparameter import appPackage_name, deviceName


class Driver_configure(object):
    def __new__(cls, *args, **kw):
        """
        使用单例模式将类型设置为运行时只有一个实例，
        在其他python类中使用基类时，
        可以创建多个对象，保证所有的对象都基于一个浏览
        :param args:
        :param kw:
        :return:
        hasattr()函数功能用来检测对象object中是否含有名为**的属性，
        如果有就返回True，没有就返回False
        """
        if not hasattr(cls, '_instance'):
            orig = super(Driver_configure, cls)
            desired_caps = {}
            desired_caps['platformName'] = 'Android'  # 平台
            desired_caps['platformVersion'] = '5.1.1'  # 平台版本
            # self.desired_caps['app'] = '***1.apk'   # 指向.apk文件，如果设置appPackage和appActivity，那么这项会被忽略
            desired_caps['appPackage'] = appPackage_name  # APK包名
            # cls.desired_caps['appActivity'] = '.ui****tivity'
            # 被测程序启动时的Activity  .'activity名，可以通过appium的inspection找到该名称'
            desired_caps['appActivity'] = '.ui***ivity'
            # self.desired_caps['appActivity'] = 'com**ding_Activity'
            desired_caps['unicodeKeyboard'] = 'true'  # 是否支持unicode的键盘。如果需要输入中文，要设置为“true”
            desired_caps['resetKeyboard'] = 'true'  # 是否在测试结束后将键盘重轩为系统默认的输入法。
            desired_caps['newCommandTimeout'] = '120'  # Appium服务器待appium客户端发送新消息的时间。默认为60秒  # 超时时间
            desired_caps['deviceName'] = deviceName
            # 手机ID(adb devices可获得)
            desired_caps['noReset'] = True  # true:不重新安装APP，false:重新安装app
            # noReset的意思是，每次启动APP不清除之前的状态，如登录后重新启动session时不需要再次登录，保留之前的登录状态
            # cls.desired_caps['autoGrantPermissions'] = True
            # self.desired_caps['noSign'] = True
            # 远程控制，通过appium可设置；若是真机，直接填写http://localhost:4723/wd/hub 或者http://127.0.0.1:4723/wd/hub即可
            cls._instance = orig.__new__(cls)
            cls._instance.driver = webdriver.Remote("http://127.0.0.1:4723/wd/hub", desired_caps)
        return cls._instance


class DriverClinet(Driver_configure):

    def get_driver(self):
        return self.driver

from src.pages import login_page
from src.common import driver_configure, gesture_operator
import unittest
import time
import warnings
import os
import allure
from src.pages import module_page
from config.globalparameter import login_name, login_password


@allure.MASTER_HELPER.feature('app自动化测试')  # 定义功能
class test_0_appium(unittest.TestCase):
    @classmethod
    def setUpClass(cls):
        # 启动appium
        warnings.simplefilter("ignore", ResourceWarning)
        os.system('start /b appium -a 127.0.0.1 -p 4723')
        time.sleep(50)  # 等待appium启动
        cls.driver = driver_configure.DriverClinet().get_driver()
        cls.GM = gesture_operator.Gesture_mainpulation()  # 手势

    @classmethod
    def tearDownClass(cls):
        pass

    # 登陆
    @allure.MASTER_HELPER.story('登录测试')
    @allure.MASTER_HELPER.severity('blocker')
    def test_login(self):
        print("登录！")
        time.sleep(1)
        self.login_page = login_page.login_page(self.driver)
        self.login_page.input_user(login_name)
        self.login_page.input_Pws(login_password)
        self.login_page.click_btnLogin()
        time.sleep(5)


class test_1_appium(unittest.TestCase):
    @classmethod
    def setUpClass(cls):
        cls.driver = driver_configure.DriverClinet().get_driver()

    @classmethod
    def tearDownClass(cls):
        driver_configure.DriverClinet().get_driver().quit()
        # os.system("start /b stopAppiumServer.bat")
        os.system("start /b taskkill /F /IM node.exe")

    @allure.MASTER_HELPER.story('切换模块测试')
    @allure.MASTER_HELPER.severity('Minor')
    def test_module(self):
        print("123!")
        # module_change.test_appium1()
        self.module_page = module_page.Module_page(self.driver)
        self.module_page.click_btn_sy()
        self.module_page.click_side_goods()
        

if __name__ == '__main__':
    unittest.main()