Summary - Logging

Combine getLogger, levels and FileHandler to write a logging sample.

Summary - Logging

In this group you learned Python's logging system. getLogger gets a logger, levels set priority, basicConfig is the root config, FileHandler is file output, dictConfig is dict-based configuration.

logging.basicConfig(level=logging.DEBUG,
                    format="%(levelname)s:%(message)s")
logger = logging.getLogger("myapp")
logger.info("app started")

In the final step you will combine all of these to write a logging sample. You can also try writing to both a file and the screen at the same time.

Exercise Logging sample

Start with import logging. Call logging.basicConfig(level=logging.DEBUG, format="%(levelname)s:%(message)s"). Get a logger with logger = logging.getLogger("myapp"). Write logger.info("başladı").

Show example solution

import logging

logging.basicConfig(level=logging.DEBUG, format="%(levelname)s:%(message)s")
logger = logging.getLogger("myapp")
logger.info("başladı")

Test yourself

Which one writes logs to a file?
- FileHandler
- getLogger
- StreamHandler
- basicConfig
Show answer

FileHandler — FileHandler writes logs to a file.
Match the group tools

getLogger

Gives a logger
logging.DEBUG

Lowest level
basicConfig

Root config
FileHandler

Writes to file

Next lesson: pyproject.toml

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