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Flask and CherryPy are two of the web frameworks of Python, which is an object-oriented, interpreted, and interactive programming language. It is also a general-purpose language created to develop multiple different programs, such as software and web development, data science, automation, etc. In this article, let us have a detailed look into the two microframeworks.
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What is Flask?
Flask is a web application framework written in Python. It provides useful tools, libraries and technologies thus make web application creation in Python easier. It is a Python module that lets you develop web applications easily and has many cool features like url routing, template engine. Flask was developed by Armin Ronacher in 2011as a test method for combining two solutions: Werkzeug (a server framework) and Jinja2 (a template library). It is a WSGI web app framework.
Key Features of Flask
1: Which of the following data types is immutable in Python?
- Flask is classified as a micro framework as it does not rely on external libraries to perform framework tasks. It has its own set of tools, technologies, and libraries to help with web application development.
- It gives developers flexibility and independence and is a more accessible framework for new developers as you can build a web application quickly using only a single Python file. Flask is also extensible and doesn’t force a particular directory structure or require complicated boilerplate code before getting started.
- Flask is preferred by programmers with more coding experience or who require more control over the app design.
- Flask is the best choice for creating static websites, rapid prototypes, MVPs, and RESTful web services.
What is CherryPy?
CherryPy is a pythonic, object-oriented web application framework. It can serve as a web server itself or one can launch it via any WSGI compatible environment. It does not deal with tasks such as templating for output rendering or backend access. The framework is extensible with filters, which are called at defined points in the request/response processing.
CherryPy is one of the oldest frameworks of Python and was founded by Remi Delon. Its very first version was released in June 2002. This framework is mainly for the developers who want to create portable database-driven web application using Python, as it provides Create, Retrieve, Update and Delete functionalities.
Key Features of CherryPy
- CherryPy is one of the easiest Python web frameworks. Its code structure is very legible.
- CherryPy can be considered both as a HTTP library and a web application framework. As a web application framework, its architecture provides mechanisms to support operations across the whole server instance, thus helping in performing persistent operations.
- It has a powerful configuration system for developers and deployers.
- It runs on Python 2.7+, 3.5+, PyPy, Jython and Android.
- New objects can be introduced and existing ones can be modified to add new features or update existing ones.
- It has built-in profiling, coverage, and testing support.
- It has built-in tools for caching, encoding, sessions, authentication, static content, and several other features.
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Differences Between Flask and CherryPy
| Flask | CherryPy |
| A microframework that offers the bare minimum | A full stack framework that can support a wide range of standard web application |
| Supports Jinja 2 engine | Supports Jinja 2, Mako and Cheetah engine |
| Constructs URL in a decorator-based way | Handles URL using a hierarchical object model |
| Needs third party libraries like asyncio or gevent for asynchronous support | Offers built in support for asynchronous programming |
| Has a large community with third party extensions and plugins | Has a comparatively smaller community |
| Has a much more developed community and hence there are more solutions available | Due to a lack of a large community, there are no targeted solutions and tools available. |
| It is a very popular web framework for Python developers | It is much older and is relatively less popular among developers. |
Flask vs CherryPy: Which is Better?
Now that you have seen all the aspects of Flask and CherryPy, you may have one big question – which is better?
- Both the Python web frameworks are quite close to each other but the main difference lies in the popularity. Even though Flask is relatively new compared to CherryPy, it enjoys massive support from a huge community of developers. It is due to the ease with which it can be used.
- CherryPy is suitable for small-scale applications that require rapid development whereas Flask is better for large-scale web applications.
- It is easier to build web APIs with Flask and REST APIs with CherryPy
- If you’re a startup and want to use a scalable framework that you can expand according to your growth, you should go for Flask. CherryPy is suitable for seasoned web developers who don’t need any coherent framework documentation
- Flask is the best option if you need clear documentation for development work. If you don’t need a lot of resources and templates for your project, you can go for CherryPy.
Pros and Cons of Flask
Pros
- Flask is flexible and easy to get started and use.
- Since it is a micro framework, it is light, and there are little dependency to update and watch for security bugs.
- The community provides multiple extensions to ease the integration of new functionalities.
- It has small core and is easily extensible
Cons
- Since it is a micro framework, you will have to do more work by yourself or increase yourself the list of dependencies by adding plugins. Its dependencies are: Werkzeug a WSGI utility library and jinja2 which is its template engine.
- The Flask community is not big, so finding a solution to a problem might be complicated.
- It has few tools so you may need to install more modules.
Pros and Cons of CherryPy
Pros
- It has proven to be fast and reliable.
- It brings order to code and provides a lot of functionality with dispatching templates.
Cons
- It seriously lacks documentation which can make it difficult for beginners to work.
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