Cement Developer Guide

What is Cement?

Cement is an advanced application framework for Python, with a primary focus on Command Line Interfaces (CLI). Its goal is to introduce a standard, and feature-full platform for both simple and complex command line applications as well as support rapid development needs without sacrificing quality. Cement is flexible, and its use cases span from the simplicity of a micro-framework to the complexity of a mega-framework. Whether its a single file script, or a multi-tier application, Cement is the foundation you've been looking for.

The first commit to Git was on Dec 4, 2009. Since then, the framework has seen several iterations in design, and has continued to grow and improve since its inception. Cement is the most stable, and complete framework for command line and backend application development.

Core Features

Cement core features include (but are not limited to):

Core pieces of the framework are customizable via handlers/interfaces
Extension handler to easily extend framework functionality
Config handler merges defaults, multiple files, and environment variables into one config
Argument handler parses command line arguments and options
Log handler supports logging to console and file
Plugin handler provides the ability to easily extend your application
Output handler renders data to the end-user (often via template handler backends)
Template handler renders content and file templates
Cache handler adds caching support for improved performance or key/value storage
Controller handler supports sub-commands, and nested/embedded controllers
Hook support adds a bit of magic to apps and also ties into framework
Zero external dependencies* (not including optional extensions)
100% test coverage using pytest and coverage
100% PEP8 and style compliant using flake8
Extensive Developer Guide and API Reference Documentation
Tested on Python 3.7+
Does not support Python 2.x

Some optional extensions that are shipped with the mainline Cement sources do require external dependencies. It is the responsibility of the application developer to include these dependencies along with their application, as Cement explicitly does not include them.

License

Projects Built on Cement™

The following are some notable projects that are Built on Cement™:

NextRelease Information

Last updated 2 years ago

What is Cement?

Core Features

Cement core features include (but are not limited to):

Core pieces of the framework are customizable via handlers/interfaces

Extension handler to easily extend framework functionality

Config handler merges defaults, multiple files, and environment variables into one config

Argument handler parses command line arguments and options

Log handler supports logging to console and file

Plugin handler provides the ability to easily extend your application

Output handler renders data to the end-user (often via template handler backends)

Template handler renders content and file templates

Cache handler adds caching support for improved performance or key/value storage

Controller handler supports sub-commands, and nested/embedded controllers

Hook support adds a bit of magic to apps and also ties into framework

Zero external dependencies* (not including optional extensions)

100% test coverage using pytest and coverage

100% PEP8 and style compliant using flake8

Extensive Developer Guide and API Reference Documentation

Tested on Python 3.7+

Does not support Python 2.x