My script runs correctly and can connect to IOT central when ran on the host RaspberryPi, Python3.7 and also from my Windows10 laptop. However, it raises an InvalidURL(f"URL can't contain control characters. {url!r} error when ran in a container built with the python:3.7-buster.
I have tried various Python Docker images but got the same error.
import iotc
from iotc import IOTConnectType, IOTLogLevel
from random import randint
import settings, client
import json, time
# settings_fp = r"config.json"
settings_fp = '/var/lib/project/config.json'
with open(settings_fp, 'r') as settings_file:
settings = json.load(settings_file)
scopeId = settings['cloud']['scope_id']
deviceId = settings['cloud']['device_id']
deviceKey = settings['cloud']['primary_key']
iotc = iotc.Device(scopeId, deviceKey, deviceId, IOTConnectType.IOTC_CONNECT_SYMM_KEY)
iotc.setLogLevel(IOTLogLevel.IOTC_LOGGING_API_ONLY)
gCanSend = False
gCounter = 0
def onconnect(info):
global gCanSend
print("- [onconnect] => status:" + str(info.getStatusCode()))
if info.getStatusCode() == 0:
if iotc.isConnected():
gCanSend = True
print("Connected to the cloud!!!")
def onmessagesent(info):
print("\t- [onmessagesent] => " + str(info.getPayload()))
def oncommand(info):
print("- [oncommand] => " + info.getTag() + " => " + str(info.getPayload()))
def onsettingsupdated(info):
print("- [onsettingsupdated] => " + info.getTag() + " => " + info.getPayload())
iotc.on("ConnectionStatus", onconnect)
iotc.on("MessageSent", onmessagesent)
iotc.on("Command", oncommand)
iotc.on("SettingsUpdated", onsettingsupdated)
iotc.connect() # code fails here
I expect a normal connection to IOT central but instead get
InvalidURL(f"URL can't contain control characters. {url!r} "
