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Creating first web application using Bottle Framework – Python

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There are many frameworks in python which allow you to create a webpage like bottle, flask, django. In this article, you will learn how to create a simple app using bottle web framework. Bottle is a fast, simple and lightweight WSGI micro web-framework for Python. It is distributed as a single file module and has no dependencies other than the Python Standard Library.

  • Routing: Requests to function-call mapping with support for clean and dynamic URLs.
  • Templates: Fast and pythonic built-in template engine and support for mako, jinja2 and cheetah templates.
  • Utilities: Convenient access to form data, file uploads, cookies, headers and other HTTP-related metadata.
  • Server: Built-in HTTP development server and support for paste, fapws3, bjoern, gae, cherrypy or any other WSGI capable HTTP server.

In order to create the app using bottle, we have to install it first

pip install bottle

Example 1:

Create a file called


from bottle import route, run
def index():
    return f'<b>Hello GFG</b>!'
run(host='localhost', port=8000,debug=True)

To run this app open command prompt and run


Output – 

You can also add variables in your webapp, well you might be thinking about how it’ll help you, it’ll help you to build an URL dynamically. So let’s figure it out with an example.

Example 2:

Create a file called


from bottle import route, run, template
def index(name):
    return template('<h2>Hello {{name}}</h2>!', name=name)
run(host='localhost', port=8080)

Output – 

Last Updated : 04 Jan, 2021
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