Python - Question on logging in __init__.py

I have the following python package structure.

python_logging
python_logging
__init__.py
first_class.py
second_class.py
run.py


Here is the code in __init__.py

__init__.py

init.py

import logging
import logging.config


# Create the Logger
loggers = logging.getLogger(__name__)
loggers.setLevel(logging.DEBUG)

# Create the Handler for logging data to a file
logger_handler = logging.FileHandler(filename='C:PythonLogstest.txt')
logger_handler.setLevel(logging.DEBUG)

# Create a Formatter for formatting the log messages
logger_formatter = logging.Formatter('%(name)s - %(levelname)s - %(message)s')

# Add the Formatter to the Handler
logger_handler.setFormatter(logger_formatter)

# Add the Handler to the Logger
loggers.addHandler(logger_handler)
loggers.info('Completed configuring logger()!')


Here is code for first_class.py

import logging

class FirstClass(object):
def __init__(self):
self.current_number = 0
self.logger = logging.getLogger(__name__)


def increment_number(self):
self.current_number += 1
self.logger.warning('Incrementing number!')
self.logger.info('Still incrementing number!!')


Here is code for second_class.py

class SecondClass(object):
def __init__(self):
self.enabled = False
self.logger = logging.getLogger(__name__)

def enable_system(self):
self.enabled = True
self.logger.warning('Enabling system!')
self.logger.info('Still enabling system!!')


Here is code for run.py

from LogModule.first_class import FirstClass
from LogModule.second_class import SecondClass

number = FirstClass()
number.increment_number()
system = SecondClass()
system.enable_system()


This is the output in the log file

LogModule - INFO - Completed configuring logger()!
LogModule.first_class - WARNING - Incrementing number!
LogModule.first_class - INFO - Still incrementing number!!
LogModule.second_class - WARNING - Enabling system!
LogModule.second_class - INFO - Still enabling system!!


Question : How did number.increment_number() and system.enable_system() write to a log file when the file handler was initialized in init.py ? also both the classes have different getloggers . Can anyone explain , it will be helpful.

__init__.py

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