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Concepts Creating Routes: Import Flask: Create a Flask Application Instance: Define a Route: The @app.route() decorator associates the URL (/path/to/your/resource) with the your_view_function function. The function can return any data you want to display in the user’s browser (usually a string or a rendered template). Dynamic Routes: You can use placeholders in your routes to capture dynamic parts of the URL: In this example, <username> is a placeholder that captures any value provided in the URL segment after “/users/”. The captured value is accessible as a variable username within the…

Virtual environments In Python, virtual environments are isolated environments that allow you to manage project-specific dependencies. This means you can install different versions of libraries for different projects without them conflicting with each other or your system-wide Python installation. Create an environment Create a project folder and a .venv folder within: Activate the environment Before you work on your project, activate the corresponding environment: There are two main tools for creating virtual environments in Python: Install Flask Within the activated environment, use the following command to install Flask: Flask is a popular…

Problem We want to represent a hierarchical file system structure using a data structure. Folders can contain other folders and files. We need efficient access and organization for navigating through this hierarchy. Data Structure Implementation Class node Class File System Example usage Explanation This example demonstrates how a BST can be used to organize and efficiently search for files and folders within a hierarchical file system structure. You could extend this concept to include additional information within the nodes (e.g., file size, creation date) and implement functionalities like deleting files/folders…

Problem We want to implement undo/redo functionality in a text editor. When a user makes changes to the document, those edits should be stored for potential undo actions. Additionally, after undoing an edit, the user should be able to redo it. Data Structures Implementation Stack Class TechEditor Example usage You can similarly implement a redo function using a queue (optional) Explanation This example showcases how a stack can be used to maintain a history of edits, enabling users to undo their actions in a text editor. You could extend this…

Problem You’re building a simple task management application. Tasks have descriptions and priorities (high, medium, low). You need to efficiently add, remove, and display tasks while maintaining their order based on priority (high priority at the beginning). Data Structure Implementation Build Node Add Task Adds a new task with the given description and priority to the linked list. Args:description: Description of the task (string)priority: Priority level (string: “high”, “medium”, “low”) Remove task Removes the first task with the matching description from the linked list. Args:description: Description of the task to…