Python Developers: Should You Use Flask or CherryPy?

One of the most commonly asked questions among students of Python is which web framework is the most widely used and which one they should concentrate on. When considering learning Python, it is vital to consider both CherryPy and Flask. CherryPy is a web development framework that utilises Python and is frequently utilised for creating web applications. On the other hand, Flask is a microframework that is celebrated for its straightforwardness and adaptability. As for their respective popularity, Flask has significantly gained ground in recent years, so those studying Python in 2022 should definitely consider learning Flask. However, CherryPy still holds its place in web development and is an option worth taking into account. Ultimately, the decision on which framework to focus on lies solely with the learner.

This blog post aims to provide you with all the answers you seek on these queries. So, let’s get started.

Python is currently one of the most popular programming languages and offers a variety of web frameworks to developers. These frameworks, which consist of modules and packages, make it possible for developers to design websites, online applications, and web services. In general, Python web frameworks can be categorised into two groups: full stack and partial stack. Full stack frameworks provide a complete set of tools and components for building web applications, whereas partial stack frameworks only offer limited features.

Full-stack frameworks offer a complete means to develop applications, encompassing various features like form validation, template layouts, and form generators. Python offers numerous widely recognised full-stack frameworks, such as Django, Turbogears, web2py, Cubicweb, Giotto, Grok, and Pylons. These frameworks are extensively utilised and applauded for their user-friendliness and powerful capabilities.

As opposed to full-stack frameworks, non-full-stack frameworks are capable of developing lightweight applications that implement specific components found in the Python standard library. Favourite non-full-stack frameworks for Python comprise CherryPy, Flask, Hug, Pyramid, Albatross, Falcon, and plenty more.

Can you provide an explanation of CherryPy?

CherryPy is a robust and object-oriented Python framework that provides developers with the ability to swiftly design stable and high-performing web applications. As one of the most time-honoured Python frameworks, CherryPy offers a broad spectrum of functionalities that facilitate the quick and efficient creation of robust database-backed applications with minimal coding. With CherryPy, developers can effortlessly fashion, retrieve, update, and delete functions for their applications.

What is Flask?

Flask is a lightweight Python framework that furnishes developers with the fundamental components indispensable for web development, such as routing and requests. Flask provides guidance but allows the software engineer the flexibility to structure their project and choose their dependencies. Additionally, this framework includes the WSGI toolkit and Jinja2 template engine, providing further resources for developers to utilise in their tasks.

To contrast Flask and CherryPy, we could break it down into the following:

  1. How Do Flask and CherryPy Differ in Terms of Application Security?

    CherryPy is equipped with a variety of built-in features for user authentication, encryption, caching, and other security solutions. In addition, the framework provides a selection of useful tools for application analysis and debugging.

    On the other hand, developers may incorporate a range of security measures into their Flask applications, such as hashed passwords, token-based authentication, cross-site scripting, and JSON encoding. Effective content security strategy establishment by developers is crucial to ensure the protection of application data while using Flask.
  2. Templating Engine Comparison Between Flask and CherryPy

    Jinja, the templating engine used together with Flask, allows developers to seamlessly design both static and dynamic templates. Additionally, Flask’s Web Server Gateway Interface (WSGI) toolkit enables developers to take advantage of the server-requested templates while building the final document.

    On the other hand, unlike the Flask framework, CherryPy does not come equipped with any templating engine. Developers, however, have the option to integrate various templates like Cheetah, Jinja2, and Mako into the framework for added convenience.
  3. Library Support and Community Assistance in Flask vs. CherryPy

    The extensive and active developer community supporting Flask provides access to a variety of third-party tools and libraries that can be utilised alongside the Flask web framework. This ensures that programmers can receive dependable answers to their queries and solutions to any bugs encountered.

    CherryPy, being an alternative framework that can be integrated effortlessly with other Python components and scale accordingly to growing needs, does not come with an extensive community support. Thus, developers will have to discover solutions on their own whenever any issues emerge.
  4. Comparing Database Support in Flask vs. CherryPy

    Flask applications can utilise different databases by leveraging database adapters. To accomplish object-relational mapping and database support, free-to-use libraries such as Flask-Pony and Flask-SQLAlchemy can be utilised. These libraries enable developers to incorporate open-source databases such as MongoDB, CouchDB, Cassandra, and DynamoDB into their Flask applications with ease.

    On the other hand, CherryPy lacks native Structured Query Language (SQL) or built-in Relational Database Management System (RDBMS) capabilities. Therefore, developers looking to benefit from the multiple database plugins and extensions available must integrate SQLAlchemy.
  5. Comparing Flask and CherryPy

    Flask enables developers to use Python’s unit testing framework for unit testing, which helps evaluate individual sections of code’s performance in isolation effectively. Unit testing is a critical tool for ensuring that code functions as intended and allows for the early identification of any potential issues during the development process.

    CherryPy does not have Flask’s in-built unit testing capability. Nose and Webtest are typically utilised by developers for unit testing purposes.

What distinguishes CherryPy and its most effective usage scenarios?

The numerous advantages provided by CherryPy include a user-friendly syntax for scalability and extensibility. Additionally, CherryPy’s HTTP server allows for hassle-free application hosting, and its easy deployment on WSGI-compliant gateways is made possible by data abstraction. These attributes make CherryPy an excellent tool for web development.

The CherryPy framework’s in-built features and user-friendly interface make it a perfect selection for creating lightweight web applications, mobile applications, and RESTful APIs. It does not necessitate a large quantity of supplementary resources such as documentation, resources, or templates to utilise this framework, making it an effortless and effective choice for developers.

Noteworthy Attributes of Flask and Its Versatility of Applications

Some of Flask’s notable attributes are its strong routing architecture, conventional data storage, and synchronous request processing.

Start-ups can leverage Flask’s scalability, easy web API, and capacity to develop large-scale applications, among other benefits. Additionally, Flask is a fantastic option for rapidly creating functional prototypes of a project.


CherryPy is a Python-centric web framework that allows for the rapid creation of maintainable and neat online applications. It’s a lightweight framework that supports the convenient building of complex web-based projects. On the other hand, Flask is a microframework built using various Python modules and libraries to construct complete and feature-rich web applications.

As developers working with Python, we must assess the advantages and disadvantages of CherryPy and Flask meticulously, as each framework offers distinct benefits and is best suited for specific types of projects. It is crucial that we consider all the aspects of the CherryPy vs. Flask debate to select the framework that best serves our needs and make an informed decision.

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There is debate as to what degree CherryPy functions as a web server.

CherryPy facilitates web application development by offering a general HTTP server and a variety of production-ready components, which are both high-speed and organised into thread pools. As a result, the development process becomes more efficient and effective. To learn more, visit our web application development page.

Does the Flask framework operate on the front end or back end?

Flask is a back-end framework that offers developers flexibility in choosing the appropriate tools, libraries, and extensions.

So, what’s the decision? Flask vs Django?

Flask outperforms for lighter projects, while Django is excellent for enterprise-level software.

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