Flask
Flask – A Quick Overview
Flask is a web application framework written in Python. It is designed to make getting started quick and easy, with the ability to scale up to complex applications. Flask is considered a microframework because it does not require particular tools or libraries. It has no database abstraction layer, form validation, or any other components where pre-existing third-party libraries provide common functions. However, Flask supports extensions that can add application features as if they were implemented in Flask itself. Flask is released under the BSD license.
Flask – Setting up a development environment
Flask is a web application framework written in Python. It is designed to make getting started quick and easy, with the ability to scale up to complex applications. Flask is considered a microframework because it does not require particular tools or libraries. It has no database abstraction layer, form validation, or any other components where pre-existing third-party libraries provide common functions.
However, Flask supports extensions that can add application features as if they were implemented in Flask itself. Extensions are available on the Flask website.
Setting up a development environment for Flask is simple and straightforward. The first step is to create a new directory for your project. Then, you need to create a virtual environment. This can be done with the virtualenv tool.
Once the virtual environment is set up, you can install Flask. The recommended way to do this is with pip. You can also install Flask using easy_install.
After Flask is installed, you can create a file called app.py in your project directory. This will be the main file for your Flask application.
In app.py, you need to import Flask and create an instance of the Flask class. Then, you can define your routes. A route is a mapping between a URL path and the function that should be called when that URL is requested.
Finally, you need to tell Flask to run the application. This can be done with the flask run command.
Flask is a great tool for creating web applications. It is simple to set up and get started with, and it is easy to scale up to complex applications.