flask python basics
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flask is a lightweight web framework for python that allows you to quickly build web applications. in this tutorial, we'll cover the basics of flask and create a simple web application.
before we begin, make sure you have python installed on your system. you can download python from here. also, you'll need to have flask installed. you can install flask using pip, python's package installer, by running the following command in your terminal or command prompt:
now, let's create a simple flask application that displays "hello, world!" when accessed through a web browser.
create a new python file called app.py and open it in your favorite text editor. then, add the following code:
save the file and navigate to the directory containing app.py in your terminal or command prompt. then, run the following command to start the flask development server:
you should see output similar to the following:
this means that your flask application is running locally on your computer. open a web browser and navigate to http://127.0.0.1:5000/, and you should see "hello, world!" displayed in the browser window.
let's break down the code we wrote:
congratulations! you've created your first flask application. in this tutorial, we covered the basics of flask, including creating a simple web application and understanding how routes work. flask is a powerful framework with many features, so feel free to explore the official flask documentation to learn more about what you can do with it.
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