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.

Related Terms

Python Typing Module

A standard library module providing type hints for function signatures and variables, enabling static analysis without runtime enforcement.

Python Iterator Protocol

The interface requiring __iter__() and __next__() methods, enabling objects to be used in for loops and other iteration contexts.

Python Interpreter

The program that reads and executes Python code, translating it into machine instructions at runtime.

A directory containing Python modules and an __init__.py file, providing a way to organize and distribute reusable code.

A modern Python dependency management and packaging tool that handles virtual environments, locking, and publishing.

A built-in class for creating enumerated constants — named groups of related values that improve code readability.

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