On Friday, 6 September 2019 20:15:40 UTC+2, MRAB wrote:
> On 2019-09-06 18:11, Spencer Du wrote:
> > Hi
> >
> > I want to print yes in gui.py but it does not get printed because of the
> > json. How do I fix this. Execute embedded.py and then gui.py to test.
> >
> > def on_message(client, userdata, msg):
> > print("message recieved= " + msg.payload.decode())
> > # print("File which you want to import(with .py extension)")
> > print("message topic=", msg.topic)
> > print("message qos=", msg.qos)
> > print("message retain flag=", msg.retain)
> >
> > if msg.payload[name] == "Hello world!":
> > print("Yes!")
> >
> What is the value of the variable called 'name'? Or did you intend that
> to be a string?
>
> if msg.payload["name"] == "Hello world!":
> print("Yes!")
"name" is part of {"name": "Hello world!"} which is a key value pair dictionary
and json.
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