How to disable logging when parsing output?

[RokeJulianLockhart]

I have trouble with ddcutil. To attempt to isolate this somewhat, I've used the undermentioned code:

try:
    shutil.which('ddcutil')
except Exception:
    logging.exception('Error code RSJQ4A: the ddcutils binary is unavailable.')
    ddcutil_available = False
    logging.getLogger().debug('1 ddcutil_available = False')
else:
    ddcutil_available = True
    logging.getLogger().debug('2 ddcutil_available = True')
    try:
        sbc.list_monitors(method='ddcutil') == sbc.list_monitors()
    except Exception:
        # try:
        #     sbc.list_monitors() == int(input('As an integer, state how many monitors are available: '))
        # except Exception:
        #     logging.exception('Error code RSJPK5: unable to acquire the list of monitors. Exiting the application.')
        #     raise SystemExit(1) from Exception
        logging.exception('Error code RSJPK5: ddcutils is unable to acquire the list of monitors. Operations may become slow.')
        ddcutil_available = False
        logging.getLogger().debug('3 ddcutil_available = False')
    else:
        logging.getLogger().debug('ddcutil is available.')
        ddcutil_available = True
        logging.getLogger().debug('4 ddcutil_available = True')

However, the undermentioned:

1. >>> sbc.list_monitors(method='ddcutil')

2. 1. DEBUG:screen_brightness_control.helpers:cache get 'ddcutil_monitors_info' = [KeyError]
      WARNING:screen_brightness_control.linux:error grabbing display info from <class 'screen_brightness_control.linux.DDCUtil'> - FileNotFoundError: [Errno 2] No such file or directory: 'ddcutil'
      

   2. []
      

...and the undermentioned:

1. >>> sbc.list_monitors()

2. 1. DEBUG:screen_brightness_control.helpers:cache get 'i2c_display_info' = [KeyError]
      DEBUG:screen_brightness_control.helpers:cache get 'ddcutil_monitors_info' = [KeyError]
      WARNING:screen_brightness_control.linux:error grabbing display info from <class 'screen_brightness_control.linux.DDCUtil'> - FileNotFoundError: [Errno 2] No such file or directory: 'ddcutil'
      WARNING:screen_brightness_control.linux:error grabbing display info from <class 'screen_brightness_control.linux.Light'> - FileNotFoundError: [Errno 2] No such file or directory: 'light'
      

   2. ['DP-2']
      

...both print logging output, which causes this to be difficult. Consequently, does anyone know how to suppress logging output from external libraries when invoked?

I've tried the undermentioned:

>>> with warnings.catch_warnings():
...     warnings.simplefilter("ignore")
...     sbc.list_monitors()
... 
DEBUG:screen_brightness_control.helpers:cache get 'i2c_display_info' = [KeyError]
DEBUG:screen_brightness_control.helpers:cache get 'ddcutil_monitors_info' = [KeyError]
WARNING:screen_brightness_control.linux:error grabbing display info from <class 'screen_brightness_control.linux.DDCUtil'> - FileNotFoundError: [Errno 2] No such file or directory: 'ddcutil'
WARNING:screen_brightness_control.linux:error grabbing display info from <class 'screen_brightness_control.linux.Light'> - FileNotFoundError: [Errno 2] No such file or directory: 'light'
['DP-2']

...and the undermentioned:

logging.basicConfig(level=logging.NOTSET)

...to no avail.

Consequently, any tips? In fact, is this behaviour (log output by default) even intended, or have I screwed-up something?

[RokeJulianLockhart]

1. Don't set the undermentioned:

   logging.basicConfig(level=logging.DEBUG)

2. ...per the undermentioned:

   >>> sbc.list_monitors()
   ['DP-2']
   >>> logging.basicConfig(level=logging.DEBUG)
   >>> sbc.list_monitors()
   DEBUG:screen_brightness_control.helpers:cache get 'i2c_display_info' = [KeyError]
   DEBUG:screen_brightness_control.helpers:cache get 'ddcutil_monitors_info' = [KeyError]
   WARNING:screen_brightness_control.linux:error grabbing display info from <class 'screen_brightness_control.linux.DDCUtil'> - FileNotFoundError: [Errno 2] No such file or directory: 'ddcutil'
   WARNING:screen_brightness_control.linux:error grabbing display info from <class 'screen_brightness_control.linux.Light'> - FileNotFoundError: [Errno 2] No such file or directory: 'light'
   ['DP-2']
   >>>