Error Handling - TechnoScripts

error handling

Strategies for handling errors gracefully in Groovy applications.

Python: Exception Handling, Reading Tracebacks & try/except/else/finally

Your program is humming along, then someone types letters where you expected a number and it dies on the spot. Moments like that are exactly what python exception handling is for. Rather than letting one bad value take down everything, you catch the error, decide how to respond, and keep the program alive. This post covers try, except, else, and finally, plus how to read a traceback, all with tested examples on Python 3.14.6. “Errors should never pass silently. Unless ... Read More

Python: Raising Exceptions & Custom Exception Classes

Learn to raise exceptions and create a Python custom exception in your own code. Build clear error names and tidy error families that make debugging easier, with tested examples and real-world patterns. “The best error message is the one that never shows up.” Thomas Fuchs Last Updated: July 2026 | Tested on: Python 3.14.6 | Difficulty: Beginner | Reading Time: 16 minutes Python ships with built-in errors like ValueError and FileNotFoundError, and they cover the everyday stuff. But real apps ... Read More

Python: Recursion, Base Cases, Stack, Practical Examples

A function that calls itself sounds like a fast track to an infinite loop, yet Python recursion is one of the tidiest ways to walk a folder tree, sum a nested list, or compute a factorial. The secret is a stopping rule called the base case. This guide builds recursive functions step by step, watches the call stack grow and unwind, shows why a naive Fibonacci makes your laptop fan scream, and pins down when a plain loop wins instead. ... Read More