Missing py file

[armon75226]

I am trying to connect to my broker using MQTT from my ESP32 chip. After uploading the the file and run it from puTTy repl
I get this error:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "main3.py", line 35, in <module>
File "umqtt/simple.py", line 57, in connect
IndexError: list index out of range


well, when I brows the directory with:
import os
os.listdir()

I don't see any umqtt directory and no file named simple.py!!!. where are these files or directory coming from in the error MSG if I don't have them in my ESP32
microelectronic? any suggestion?

Thank you

[kevinkk525]

you have to put them onto your device.

[pythoncoder]

The module is frozen as bytecode: standard firmware builds include some modules compiled into the build. If you issue

Code: Select all

help('modules')

you should see simple as part of the output.

The failing line is

Code: Select all

addr = socket.getaddrinfo(self.server, self.port)[0][-1]

I would check your server and port settings. It would help us figure out why this is failing if you posted your code.

[armon75226]

Hi pythoncoder,
Thanks for the useful information. You actually answered couple of my other questions.
My dilemma is connecting my ESP32 to AWS IoT.
I get [Errno 113] EHOSTUNREACH, which I think that there is an issue with handshake with AWS:
I am using this code:

CACERT_PATH = "/flash/root.pem"
KEY_PATH = "/flash/49c84a8c4a-private.key"
CERT_PATH = "/flash/49c84a8c4a-certificate.pem"

with open(KEY_PATH, 'rb') as f:
key1 = f.read()
with open(CACERT_PATH, 'rb') as f:
key2 = f.read()
with open(CERT_PATH, 'rb') as f:
cert1 = f.read()

client = MQTTClient(client_id="youraccount/feeds/lights", server="a21sigud7911d7.iot.us-west-2.amazonaws.com", port=0, keepalive=4000, ssl=False, ssl_params={ "key":key1, "cert":cert1, "server_side":True })

I posted a topic a few days back but no replies. I spent a few days struggling/changed the code and setting with no luck
Do you have any idea why I can talk to AWS?
Thanks in advance

[pythoncoder]

The last time I tried I made no headway with TLS and could only connect to unencrypted brokers. Since then I gather TLS support has improved: hopefully someone with recent experience will advise.

[armon75226]

Got it, Thanks for quick response

[kevinkk525]

Sorry, I obviously did not read it correctly. Glad pythoncoder could help quickly.