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Rewriting Python code without classes using ast and astor What will you learn? In this post, you will discover how to transform Python code originally based on classes into class-less structures. This transformation is accomplished by harnessing the power of Python’s ast (Abstract Syntax Trees) module in conjunction with the astor library. Introduction to the … Read more

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Why does the pushButton.connect() only work in a different class? What will you learn? In this tutorial, you will delve into the reasons behind pushButton.connect() only functioning in a separate class. You will also master the technique to resolve this common issue. Introduction to Problem and Solution When developing GUI applications using PyQt in Python, … Read more

Nested Directories and Classes in a Python Library

What will you learn? Discover how to effectively work with nested directories and classes within a Python library to enhance organization and maintainability. Introduction to the Problem and Solution When dealing with large projects or libraries, organizing code into directories is crucial for improving readability and maintainability. Utilizing classes further enhances the structure and modularity … Read more

Type Alias Error – Name is not Defined

What will you learn? In this tutorial, you will learn how to use type aliases as class variables in Python. Understanding the concept of type aliases and their significance in Python programming will be the main focus. Introduction to the Problem and Solution When working with type annotations and classes in Python, issues related to … Read more

Updating a Screen from Another Screen in Kivy with Different Classes

What will you learn? In this tutorial, you will master the technique of updating the content of one screen from another in Kivy, even when using different classes. By understanding how to leverage properties and methods effectively, you will be able to seamlessly communicate between screens and enhance the user interface dynamically. Introduction to the … Read more

Python Dataclasses and SQLite3 Adapters

What will you learn? Explore the power of Python dataclasses for creating structured data objects efficiently. Learn to leverage SQLite3 adapters to handle custom data types seamlessly. Introduction to the Problem and Solution In Python applications, managing structured data can become complex. By utilizing dataclasses, we can streamline the creation of classes to hold data … Read more

Decorator for Casting Class Attributes in Python for MyPy

What will you learn? In this tutorial, you will learn how to create a Python decorator that casts class attributes for seamless integration with MyPy type checking. By the end of this guide, you will be able to enforce specific data types on class attributes efficiently. Introduction to the Problem and Solution When developing typed … Read more

Fixing TypeError for ‘id’ field in Python

What will you learn? In this tutorial, you will master the art of resolving the pesky TypeError “Field ‘id’ expected a number but got .” This error often arises when dealing with objects or classes in Python. Introduction to the Problem and Solution Encountering the error message “TypeError: Field ‘id’ expected a number but got … Read more

How to Template a Registry Class using `__new__` as a Factory in Python

What will you learn? This guide will walk you through creating a registry class in Python that leverages the __new__ method as a factory. You will grasp the concept of templating a class for seamless instantiation and usage, enhancing your understanding of dynamic object creation. Introduction to the Problem and Solution In Python, managing instances … Read more

Typing Numba Functions Using Classes and Dictionaries

What You Will Learn Discover the art of utilizing Numba functions in Python with the elegance of classes and dictionaries for efficient code structuring and enhanced performance. Introduction to the Problem and Solution Embracing Numba functions alongside classes and dictionaries in Python offers a systematic approach to managing data and functionality. This amalgamation not only … Read more