解决：YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated, as the default Loader is unsafe.

使用PyYAML解析yaml文件时，报错：

fs = open(r"E:virtual_workshopAPP_AutoTestcapscaps.yml")
caps_data = yaml.load(fs)
print(caps_data)


#运行结果
D:programPython37python.exe E:/virtual_workshop/APP_AutoTest/common/base_driver.py
[{'platformName': 'Android', 'platformVersion': '5.1.1', 'deviceName': 'Android Emulato', 'appPackage': 'com.xxzb.fenwoo', 'appActivity': 'com.xxzb.fenwoo.activity.addition.WelcomeActivity'}, {'server_ip': '127.0.0.1', 'server_port': 4723}]
E:/virtual_workshop/APP_AutoTest/common/base_driver.py:8: YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated, as the default Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.
  caps_data = yaml.load(fs)

Process finished with exit code 0

原因：YAML 5.1版本后弃用了yaml.load(file)这个用法，因为觉得很不安全，5.1版本之后就修改了需要指定Loader，通过默认加载​​器（FullLoader）禁止执行任意函数，该load函数也变得更加安全

解决办法：

caps_data = yaml.load(fs, Loader=yaml.FullLoader)