Ball is a lightweight and flexible micro-framework for Python that makes it easy to get started with web development. It is designed to be simple and minimalistic, offering essential tools and features that are sought after for building a web device, while allowing developers to keep an eye on how additional choices can be implemented.
It is a “micro-framework”, which means that it does not require any specific tools or libraries. This gives developers the freedom to decide how to extend their device, making Flask a good choice for people who need flexibility and customization. If you are coming from PHP, this could be an alternative to using other micro-frameworks such as Slender. If you are coming from Ruby, you should look for Flask similar to Sinatra.
Let’s see how we can get started with Ball and assemble a simple web page.
Arrange the ball
First, we need to organize Flask. We can do this by running:
pip arrange flask
Create App Report
Next, we need to create a Python file, for example, app.pyTo get started, let’s add the following code:
from flask import Flask
app = Flask(__name__)
@app.route("https://wpmountain.com/")
def space():
return "Hello Flask!"
THE Flask elegance is used to create an instance of the app. The @app.route("https://wpmountain.com/") decorator maps the home page URL, /to the space function, which returns the message “Hello Flask!”.
Run the app
Now run the app using the following command:
flask run --debug
After speaking with http://127.0.0.1:5000/ throughout the web browser, we will see the message “Hello Flask!”.
In this case, we also run the app in debug mode, which regularly reloads the server as you make changes to the code. This is useful for development, as you will see the changes instantly without having to restart the server. Note that you should disable debug mode when deploying your device to a production server.
Routing
One of the most numerous choices provided by Flask is routing. Routing is the process of mapping URLs to functions that handle requests. In the previous example, we defined a path to the homepage using @app.route("https://wpmountain.com/") decorator. This tells Flask to call the space function when the buyer visits the homepage URL, /.
We can also define paths for multiple pages. For example, to create a About internet web page, we can add the following code:
@app.route('/about')
def about():
return "That's the About internet web page."
Now, if we load http://127.0.0.1:5000/aboutwe will see the message “That’s the About the Internet web page.”.
In conclusion
Flask is an ideal solution for students and professional developers, especially when you want flexibility without the complexity of larger frameworks like Django.
In this article, we’ve outlined the basics of how Flask works best with a few simple examples that are comparable to how you might run your development server, and we’ve covered just a little bit of routing in Flask to create static pages. In longer articles, we’ll cover more complicated topics like rendering templates, using forms, handling requests, and connecting to databases.
So stay tuned!
The article Getting Started with Flask first appeared on Hongkiat.
Supply: https://www.hongkiat.com/blog/getting-started-with-flask/
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