Developing extensions for Inkscape

This document is intended to be a guide about how to develop extensions for Inkscape (a professional vector graphics editor). Although it is possible to find some information about how to develop extensions for Inkscape, the docs are scarce, old and (in my opinion) diffult to follow. Please note that THIS IS A WORK IN PROGRESS and there is still a lot write about it.

• What are extensions?
• Basics to create an extension: file structure, programming language...
• Basics of the SVG format
• Python extensions: libraries that can be used
• The .inx file

def factorial(x):
    assert x >= 0 and x % 1 == 0, "x debe ser un entero mayor o igual a 0."
    if x == 0:
        return 1
    else:
        return x * factorial(x - 1)