Python Book Nearly Done

Just a quick update. Although I wanted to revert to two articles a week, I got tied up with projects, and I may stick with one article a week for a bit longer. I am getting ready to present at the MMT conference, and I am trying to finish off the guide to the sfc_models stock-flow consistent models package.

 I have released version 1.0 of sfc_models; it is similar to the previous development versions, but is a major jump versus the last production version. The idea is that the guide is calibrated against version 1.0 of the module, and users could download that version if they want the code examples within the book to be guaranteed to work.