无法连接到python iothub

Question

我试图为azure iothub安装python包并使用Ubuntu-14.04连接到它但是出现了一些错误。

这是错误。

无法在连接字符串

中找到SharedAccessKeyName

(env) pr@pr-ubuntu:~/azure-iot-sdk-python/service/samples$ python iothub_devicetwin_sample.py 

Python 2.7.6 (default, Oct 26 2016, 20:30:19) 
[GCC 4.8.4]
IoT Hub Service Client for Python

Starting the IoT Hub Service Client DeviceTwin Python sample...
    Connection string = HostName=bossatest.azure-devices.net;DeviceId=robot1;SharedAccessKey=aI2/uTjcQxmFv4Ya4TgGUW4tYvkDTjbrGG7cB5ogVfU=
    Device ID         = robot1
Error: Time:Tue Jun 13 06:38:38 2017 File:/home/prem/azure-iot-sdk-python/c/iothub_service_client/src/iothub_service_client_auth.c Func:IoTHubServiceClientAuth_CreateFromConnectionString Line:83 Couldn't find SharedAccessKeyName in connection string

Traceback (most recent call last):
  File "iothub_devicetwin_sample.py", line 66, in <module>
    iothub_devicetwin_sample_run()
  File "iothub_devicetwin_sample.py", line 36, in iothub_devicetwin_sample_run
    print ( "Unexpected error {0}" % iothub_error )
TypeError: not all arguments converted during string formatting

Answer 1

根据您的错误信息，根据here中的示例源代码，问题是由您使用的缺少SharedAccessKeyName属性的连接字符串引起的。

在示例源代码中，连接字符串应如下所示。

# String containing Hostname, SharedAccessKeyName & SharedAccessKey in the format:
# "HostName=<host_name>;SharedAccessKeyName=<SharedAccessKeyName>;SharedAccessKey=<SharedAccessKey>"

您可以在Azure门户网站上再次尝试，如下图所示。