Application logging best practices

[aecordoba]

I'm newbie in Python development.
I was reading several logging tutorials. For example, in "Medium" you have this guide:
A Step-by-Step Guide to Configuring Python Logging with YAML Files
It suggests to load configuration file in order to log a message, this way:

import logging.config
import yaml

# Load the config file
with open('logging_config.yaml', 'rt') as f:
    config = yaml.safe_load(f.read())

# Configure the logging module with the config file
logging.config.dictConfig(config)

# Get a logger object
logger = logging.getLogger('development')

# Log some messages
logger.debug('This is a debug message')

But, when I have an application with several modules, I have to repeat this code in every module that need to log.
Are there any way to avoid this boilerplate?
Is there a solution in the standard library for this issue?

Thank you, in advance.
--
Adrián E. Córdoba

[snippsat]

Use logurur it has no or minimal boilerplate setup.
Example.

import time
from loguru import logger
logger.add("loop.log", rotation="1 week")

start = logger.info('Start of loop')
targets = ["a", "b", "c"]
for target in targets:
    time.sleep(5)
    logger.debug(f"Log file: {target}")
end = logger.info('End of loop')

Output:
2025-11-02 09:50:58.219 | INFO     | __main__:<module>:5 - Start of loop
2025-11-02 09:51:03.221 | DEBUG    | __main__:<module>:9 - Log file: a
2025-11-02 09:51:08.222 | DEBUG    | __main__:<module>:9 - Log file: b
2025-11-02 09:51:13.223 | DEBUG    | __main__:<module>:9 - Log file: c
2025-11-02 09:51:13.224 | INFO     | __main__:<module>:10 - End of loop

For a application if build like a package can have the minimal setup in __init__.py at top level.
app/__init__.py:

from loguru import logger
import sys

# Only info to file
logger.remove()         
logger.add("logs/app.log", rotation="10 MB")

Then your modules just log;
app/module_a.py:

from loguru import logger

def run():
    logger.debug("A says hi") 

app/module_b.py:

from loguru import logger

def run():
    logger.info("B reporting")