Custom exception classes are an essential part of robust and maintainable software development. Here are several key reasons why you might need to define your own exception classes in Python: 1. Clarity and Specificity Custom exceptions can make your code more readable and easier to understand. By defining exceptions that are specific to your application, […]
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User-Defined Exceptions in Python
Introduction In Python, exceptions are events that disrupt the normal flow of a program. When such an event occurs, the program crashes unless the exception is handled. Python has many built-in exceptions, such as ValueError, TypeError, and IndexError. However, there are situations where these built-in exceptions may not adequately represent the specific error conditions of […]
Introduction to JSON
What is JSON? JSON (JavaScript Object Notation) is a lightweight data-interchange format that is easy for humans to read and write, and easy for machines to parse and generate. It is based on a subset of the JavaScript Programming Language but is language-independent, meaning it can be used with many programming languages. Why Use JSON? […]
Essential pip Commands for Python Package Management
Below is a list of commonly used pip commands for managing Python packages. pip is the package installer for Python, allowing you to install, update, and manage Python packages from the Python Package Index (PyPI) and other package indexes. Basic pip Commands Install a specific version of a package: Managing Requirements Using Different Python Versions […]
pdb in Python
What is pdb? pdb stands for “Python Debugger,” and it is the built-in interactive debugger for Python. It’s a powerful tool that allows developers to inspect and debug Python code during runtime. You can use pdb to set breakpoints, step through code, examine variables, and identify issues in your Python programs. Step 1: Import the […]
assert vs raise in Python
assert, format, and raising errors are not interchangeable concepts; they serve different purposes and have distinct use cases in Python. In summary, assert is primarily for debugging and verifying conditions, raise is for raising exceptions in response to errors or exceptional situation. These concepts are not interchangeable and are used for different purposes in your […]
Guide to Using Assertions in Python
Assertions are a powerful tool in Python for debugging and error-checking. They allow you to test assumptions in your code and raise an error if the assumption is false. In this guide, you will learn how to use assertions effectively in Python. 1. Introduction to Assertions An assertion is a condition or expression that you […]
What is “pass” in Python?
In Python, the pass statement is a placeholder that does nothing. It’s a no-op, and it’s often used when you need a statement for syntactic reasons but don’t want it to have any operational effect. For example, in situations where you’re working on an incomplete code block or function and want to fill it in […]
Guide to User-Defined Exceptions in Python
User-defined exceptions in Python allow you to create custom exception classes to handle specific error scenarios in your code. This guide will walk you through the process of creating and using user-defined exceptions in Python. 1. What Are User-Defined Exceptions? Python provides a wide range of built-in exceptions, but sometimes you may encounter situations where […]
Guide to the raise Keyword in Python with Examples
The raise keyword in Python is used to raise exceptions. You can use it to raise built-in exceptions or your own custom exceptions. In this guide, we will explore the raise keyword, its syntax, and provide examples to illustrate its use. 1. Introduction to the raise Keyword In Python, exceptions are used to handle errors […]