Gateways: Confusing output for list_devices_for_gateway

[stevebriskin]

The list_devices_for_gateway function in gateway/gateway.py has a loop that isn't exercised which results in confusing output. There is no 'deviceNumIds' key in the devices dict .

In this example 'my-node-device' is bound to gateway 'testgateway'

$ python gateway.py --service_account_json XYZ.json --registry_id=my-registry --device_id=null --gateway_id=testgateway --project_id=myproject list_devices_for_gateway
Device: 2587394384972593 : my-node-device
No devices bound to gateway testgateway

The dict at devices dict is missing 'deviceNumIds'

{u'devices': [{u'numId': u'2587394384972593', u'id': u'my-node-device'}]}

[gguuss]

Thanks for the heads up, what version of Python are you using? I just tested the sample and I'm seeing the following output for a gateway with no bound devices:?

No devices bound to gateway jah

A gateway with one bound device renders as:

Device: 2658882084459077 : alpha

A gateway with two bound devices renders as:

Device: 2658882084459077 : alpha
Device: 2765886308686097 : bleep

[gguuss]

I see what you're saying though, I'm not sure what conditions the sample is trying to resolve with the second loop or why/when the deviceNumIds dict would be populated. I'll take another look later on.

[gguuss]

Resolved in this PR. As you pointed out, the initial check for deviceNumIds would never be reached.