Concepts: Logging and Debugging

Short essays on why logging and debugging look the way they do in Python — the "ah, that's why" layer beneath the syntax. Read these once and they'll save you from a lot of head-scratching later.

Essays in this section

• Understanding log levels — what DEBUG, INFO, WARNING, ERROR, and CRITICAL actually mean, and how to choose between them.
• Why logging beats print — the case for reaching for logging as soon as your code outgrows a scratch script.