I am fairly new to Python and now trying to use Logging rather that Print to follow and debug my code. The problem is that I am trying to setup Logging parameters using a def inline function and it is not working. I am using def because the parameter list is long and can be reused.
However by trial and error (definitely not by understanding!) I find that the following code works:

def setuplogging():
    # logging_example

    #import logging

    # When setting up logging, define the level using capitals because logging.debug is seen as a function, logging.DEBUG is the level id.
    
    # Create a custom logger
    logger = logging.getLogger(__name__) #The variable __name__ contains the dotted name of the current module.
    logger.setLevel(logging.DEBUG) #WARM is default

    # Create handlers
    c_handler = logging.StreamHandler()
    f_handler = logging.FileHandler('E:datacomputingsoftwareprogrammingscriptsLOGFILE.log')
    c_handler.setLevel(logging.DEBUG)
    f_handler.setLevel(logging.DEBUG)

    # Create formatters and add it to handlers
    c_format = logging.Formatter('%(name)s - %(levelname)s - %(message)s')
    f_format = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
    c_handler.setFormatter(c_format)
    f_handler.setFormatter(f_format)

    # Add handlers to the logger
    logger.addHandler(c_handler)
    logger.addHandler(f_handler)

    logger.info('def This is a test of an info message')
    logger.warning('def This is a warning')
    logger.error('def This is an error')

import logging
logging.warning('This is a trial of basic logging')
setuplogging()
logging = logging.getLogger(__name__)

logging.info('Script This is a test of an info message')
logging.warning('Script This is a warning')
logging.error('Script This is an error')

However, without the "logging = logging.getLogger(__name__)" after the function call, the last three logging statements in the main script do not do anything. Why is this?
The output I get is doubled - dont know why:

[![Extract from the console log:][1]][1]


  [1]: https://i.sstatic.net/4ap6Io5L.png
Thanks in advance for your help.