运行pytest的自动化脚本时获取“空套件”错误

Question

我正在尝试运行pytest自动化脚本。运行下面的代码时，pycharm中出现“空套件”错误

def setup():
    des_caps = {
        "platformName": "Android",
        "platformVersion": "10",
        "deviceName": "emulator-5554",
        "app": "D:\\example.apk",
        "appActivity": "com.example.SplashActivity",
        "appPackage": "com.example"
    }

    driver = webdriver.Remote("http://localhost:4723/wd/hub", des_caps)

我试图修改上面的代码，如下所示

def setup():
    des_caps = {
        "platformName": "Android",
        "platformVersion": "10",
        "deviceName": "emulator-5554",
        "app": "D:\\example.apk",
        "appActivity": "com.example.SplashActivity",
        "appPackage": "com.example"
    }

driver = webdriver.Remote("http://localhost:4723/wd/hub", des_caps)

但获取“未解析引用'des_caps'时”错误