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Welcome to CodersLegacy, a coding site aimed primarily towards aspiring new programmers looking to expand their skill set. How do we intend to achieve this? Read the article to find out!
The Global Interpreter Lock (GIL) in Python: A Comprehensive History
The Global Interpreter Lock, commonly referred to as the GIL, has been one of Python’s most discussed features since its inception. The GIL is a mutex that protects access to Python objects, preventing multiple native threads from executing Python bytecode at once. While it simplifies memory management in CPython, the most widely used Python implementation, … Read more
Unlocking the Power of Multiprocessing in Python
Python is a versatile language that excels in many areas, but when it comes to taking full advantage of multi-core processors, it can sometimes feel like hitting a wall. This is where multiprocessing comes in—a powerful tool in Python’s arsenal that lets you break through the limitations of the Global Interpreter Lock (GIL) and unlock … Read more
Understanding the Switch Case Statement in Python 3.10
Python is known for its simplicity and readability, but one feature it has historically lacked is a native switch case statement, commonly found in other programming languages like C, C++, and Java. Instead, Python developers often relied on a series of if-elif-else statements or dictionaries to emulate switch-case behavior. However, with the release of Python … Read more
Adding Data Files in Nuitka (Python Files, Images, etc)
Nuitka is a Python-to-C compiler that converts Python code into executable binaries. While Nuitka efficiently compiles Python scripts, incorporating data files such as images, audio, video, and additional Python files requires can be a little tricky. This guide outlines the steps to include various data files in a Nuitka standalone executable. Basic Setup for Nuitka … Read more
How to make ttk.Treeview Editable (Python)
In this tutorial we will explore how to make the Tkinter Treeview Widget, “Editable”. In a previous tutorial, we wrote the following code to represent Product data in a Tabular format using the Treeview widget. But the problem with this approach, is that there is no way of editing the Table from the user’s perspective. … Read more
Tkinter Table Widget using Treeview (Python)
In this tutorial we will explore how to create a Table using the Treeview Widget in Tkinter. The Treeview widget is a versatile widget used to display hierarchical data in a tabular format. It allows for the creation of columns with headings and supports features such as sorting, selection, and editing of data entries. This … Read more
Searchable Tkinter Combobox with visible Dropdown while editing
Tkinter is not the most modern GUI library out there, and can be a bit lacking in certain features that are now common across modern GUIs. For example, a popular feature which we see in modern dropdowns (combo boxes) is that they are “searchable”. This means that if there are 30 options available in the … Read more
Interactive Scatter Plot Highlighting and Deletion with Matplotlib
In this article we will show case a useful piece of code that was developed during a certain side-project of mine. The Project I was working on required an Interactive Scatter Plot that the user could interact it with in many ways. This includes features like being able to mass-select and highlight individual scatter points … Read more
Exploring Data Tables in Tkinter with PandasTable
In this tutorial, we will delve into the powerful combination of Pandas and Tkinter through the PandasTable library. PandasTable provides a convenient way to display and interact with pandas DataFrames in a Tkinter GUI. Prerequisites: You will also need to install the pandas and pandastable libraries. Run the following commands to do so: Creating Interactive … Read more
Creating a Login Form with PyQt6
In this tutorial, we’ll walk through the process of creating a simple login form using PyQt6, a set of Python bindings for Qt, a powerful GUI toolkit. We’ll create a window with a title, username and password fields, and buttons for registration and login. Additionally, we’ll implement a basic login functionality to check if the … Read more
JavaScript SQLite3 Tutorial for Beginners (Node.js)
In this tutorial we will explore how to set up, install and use the SQLite3 Database in JavaScript. What is SQLite? SQLite is a lightweight, serverless, and embedded relational database management system (RDBMS) that is widely used, especially in applications with moderate data storage needs. SQLite offers several benefits that make it a popular choice … Read more
Switching between Multiple Screens in Tkinter (dynamically)
The following article demonstrates a useful trick in Tkinter to create multiple “screens” (e.g. a login screen, register screen, main page screen) within a single window! Instead of creating a new window for each screen, we will use a single tkinter window, which swaps dynamically between multiple “screens” (represented by frames). This is more efficient … Read more