John Sheehan graduated with a degree in Computer Science & Engineering from the University of Illinois at Chicago, and has been programming primarily with Python for the past decade. As a freelance software developer, they have developed custom business software for scores of companies throughout the United States. In their free time, John is an avid DIYer, electronics enthusiast, and musician. They are currently based in sunny Southern California, and are the meetup organizer for the local Python and Raspberry Pi user groups.