问python 调用云短信是返回异常？

D:\Virtualenvs\applet\Scripts\python27.exe D:/PycharmProject/myapplt/myapplt/script/testpy_sendcode.py

7257

{"SmsSdkAppid": "1400399970", "TemplateID": "665755", "SenderId": "", "ExtendCode": null, "Sign": "历史应该回味", "TemplateParamSet": [7257], "PhoneNumberSet": ["+8618510619304"], "SessionContext": null}

[TencentCloudSDKException] code:ClientNetworkError message:sequence item 0: expected string, int found requestId:None

Process finished with exit code 0