Infinite loop problem

[DeaD_EyE]

If you compare the old Library and the new from Circuit Python, you see that they raise a RuntimeError if something wrong happens.

https://github.com/adafruit/Adafruit_Cir...ht.py#L205
https://github.com/adafruit/Adafruit_Cir...ht.py#L209
https://github.com/adafruit/Adafruit_Cir...ht.py#L237
https://github.com/adafruit/Adafruit_Cir...ht.py#L241

The old library is also raises a RuntimeError: https://github.com/adafruit/Adafruit_Pyt...erry_Pi.py (just seek "raise ")

Corrected version, but not tested.

import logging
import sys
import time

import Adafruit_DHT as adht

logging.basicConfig(
    filename="temperature.log",
    filemode="a",
    format="%(created)f %(message)s",
    level=logging.INFO,
)
log = logging.getLogger()


def main_loop():
    while True:
        try:
            humidity, temperature = adht.read_retry(adht.DHT22, 23)
        except RuntimeError as e:
            # this block, if RuntimeError were raised from adht.read_retry
            log.error(f"RuntimeError: {e}")
        else:
            # this block, if no Exception were raised by adht.read_retry
            log.info(f"Temp={temperature:0.1f} C and Humidity={humidity:0.1f} %")
        # this is always executed
        print("Waiting for 60 seconds… Sensor 0", file=sys.stderr)
        time.sleep(60)


if __name__ == "__main__":
    try:
        main_loop()
    except KeyboardInterrupt:
        print("\nCTRL+C\n", file=sys.stderr)

By the way, I use always black and isort for code formatting and sorting of imports.

For example the module from Adafruit is a third-party module. This should be imported after first party packages like sys, os, etc.

Other changes:

• f-strings
  
• log = logging.getLogger() and use this instead of logging.error, logging.info
  
• printing to sys.stderr
  
• loop is in a function
  
• try-except around main_loop