Python
Beginner
What is Logging Module?
Python's built-in module for recording diagnostic information with configurable handlers, formatters, and log levels.
The logging module provides five severity levels: DEBUG, INFO, WARNING, ERROR, and CRITICAL. Loggers can output to console, files, email, syslog, or custom destinations via handlers. Formatters control the output format.
Best practices include using module-level loggers (logger = logging.getLogger(__name__)), configuring in a central location, using structured logging for production, and never using print() for operational logging.
