Python Try Except: An Illustrated Guide

What is Try/Except in Python? Python’s try and except keywords are used to ‘catch’ an exception and handle it, preventing it from terminating your program as it normally would. This could be useful in situations where you know there’s potential for an exception to occur, and you want your program to be able to continue … Read more

How to Fix “ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()”

Here’s an error I recently encountered when working with NumPy arrays: If you run the following code, you’ll experience a special ValueError: The output will be this error message: How can you fix this error? I’ll give you a short and a long answer to this question. Let’s start with the short one: Solution: Use … Read more

Manually Raising (throwing) an Exception in Python

Problem Statement: How to raise (throw) an exception in Python manually? Using raise to Throw Exception in Python You can decide to throw a specific exception manually if a particular condition arises with the help of the raise keyword. As a good practice, you should raise specific exceptions. In the following example, we will raise … Read more

Cómo arreglar “ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() o a.all()”

Si ejecutas el siguiente código, experimentarás un ValueError especial: El resultado será este mensaje de error: Solución: Usar las funciones de Numpy llamadas logical_and() y logical_or() en lugar de los operadores lógicos de Python (“and” y “or”). Domina los fundamentos y únete al curso “Funciones integradas de Python” aquí: https://academy.finxter.com/university/python-built-in-functions-every-python-coder-must-know/ ¿Por qué se produce el … Read more

[FIXED] fatal error: Python.h: No such file or directory

Problem Statement: How to fix “fatal error: Python.h: No such file or directory“? What is a “fatal” error? A fatal error causes a program to end with practically no warning without even saving its state. It usually occurs when an application attempts to access a piece of invalid information or data. The program closes down … Read more

[FIXED] UnicodeDecodeError: ‘utf8’ codec can’t decode byte 0xa5 in position 0: invalid start byte

Introduction Problem Statement: How to fix “UnicodeDecodeError: ‘utf8’ codec can’t decode byte 0xa5 in position 0: invalid start byte” in Python? Using a specific standard to convert letters, symbols and numbers from one form to another is termed as Encoding. A Unicode character can be encoded using a variety of encoding schemes. The most common … Read more