Computers use a pen to draw letters, too. The Pen object from the Python FontTools and RoboFab is a unique concept, which, once you get a grip on it, opens up a vast number of possibilites for your type design projects, from outline manipulation to error checking, from glyph effects to parametric design helpers, from serious to fun. I will introduce the Pen concept, show you how to work with Pens, and explain some examples from my daily work. Some prior Python knowledge is required.
Code examples and pdf: github.com/jenskutilek/TypoLabs2016