Python / rapid development
Tkinter Rapid Application Development (RAD) library - Tkinter XML widget building
Python Library for Rapid Development of Design Workflows (previously known as Pyliburo)
A really small framework for rapid development of small python web applications
Python client library for the RapidPro API
Lantz is an automation and instrumentation toolkit with a clean, well-designed and consistent interface. It provides a core of commonly used functionalities for building applications that communicate with scientific instruments allowing rapid application prototyping, development and testing. Lantz benefits from Python’s extensive library flexibility as a glue language to wrap existing drivers and DLLs.
Simple and rapid application development framework, built on top of Flask. includes detailed security, auto CRUD generation for your models, google charts and much more. Demo (login with guest/welcome) - http://flaskappbuilder.pythonanywhere.com/