Concepts: Error Handling

Short essays on why error handling in Python works the way it does. These are the pieces you read once and keep coming back to when something surprises you in practice — the "ah, that's why" layer beneath the syntax.

Essays in this section

• Why error handling matters — the consequences of ignoring exceptions and the qualities of code that handles them well.
• Understanding the exception model — how exceptions propagate up the call stack, how the interpreter finds a matching handler, and what tracebacks are telling you.