Web development in Python: Bottle in action

With the popularity and development of the Internet, Web development is becoming increasingly important in modern computer science. As a powerful and easy-to-use programming language, Python naturally has a rich web development framework. This article will introduce one of the frameworks, Bottle, and demonstrate through an example how to use Bottle for Web development in Python.

Bottle is a lightweight Python Web framework. Its source code is short and concise, but its functions are very powerful. It is especially suitable for quickly writing small Web applications. Bottle uses the WSGI (Web Server Gateway Interface) interface and can run on any WSGI-compatible web server, such as Apache, Nginx, etc. Bottle comes with multiple functions such as routing and template engines, making it easy to build a complete web application.

Below, we will use a simple example to illustrate how to use Bottle for web development.

First, we need to install Bottle. You can use the pip command to install:

pip install bottle

Next, let’s write a simple web application. Suppose we need to write a website that can display the current date and current time. We can create a Python file named app.py and write the following code:

from bottle import route, run, template
import datetime

@route('/')
def index():
    now = datetime.datetime.now()
    return template('<h1>{{date}}</h1><h2>{{time}}</h2>', date=now.strftime('%Y-%m-%d'), time=now.strftime('%H:%M:%S'))

if __name__ == '__main__':
    run(host='localhost', port=8080)

In this code, we first imported some of Bottle's modules (route, run, template) and datetime module. Next, we used Bottle's decorator syntax to create a route function to handle the root path ('/') of the web request. In this function, we get the current date and time and use Bottle's template engine (template) to generate an HTML page.

Finally, in the main function, we use Bottle's run function (run) to start a web server and listen to all HTTP requests from the local host, port 8080. If we run this script in the terminal, open the browser, and visit http://localhost:8080, we can see the web page with the current date and time.

Through this simple example, we can see that using Bottle for web development is very simple and intuitive. If you need more complex functions, such as database access, form processing, etc., Bottle also provides corresponding support. At the same time, Bottle also supports advanced features such as multi-threading and SSL encryption, which can meet most web development needs.

In short, Bottle is a simple and practical Python Web framework, suitable for quickly writing small Web applications. If you need to write a small web application, Bottle is undoubtedly a good choice.

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