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Logging for Automation Scripts (logging module)

Why logging

Section titled “Why logging”

Logs help you answer:

  • what happened?
  • when did it happen?
  • why did it fail?

Basic setup

Section titled “Basic setup”
logging_to_file.py
import logging
 
logging.basicConfig(
    level=logging.INFO,
    format="%(asctime)s %(levelname)s %(name)s %(message)s",
    handlers=[
        logging.FileHandler("job.log", encoding="utf-8"),
        logging.StreamHandler(),
    ],
)
 
log = logging.getLogger("job")
log.info("started")

Rotation

Section titled “Rotation”

For large logs, use RotatingFileHandler.

🧪 Try It Yourself

Section titled “🧪 Try It Yourself”

Exercise 1 – List Files with os.listdir

Section titled “Exercise 1 – List Files with os.listdir”

Exercise 2 – Join Paths with os.path.join

Section titled “Exercise 2 – Join Paths with os.path.join”

Exercise 3 – Write and Read a File

Section titled “Exercise 3 – Write and Read a File”

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