CS50x 2026 - Lecture 9 - Flask

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*** This is CS50, Harvard University's introduction to the intellectual enterprises of computer science and the art of programming. *** TABLE OF CONTENTS 00:00:00 - Introduction 00:00:43 – Flask 00:28:41 – Forms 00:33:31 – Jinja 00:37:12 – Templates 00:48:10 – Request Methods 00:54:22 – Frosh IMs 01:31:10 – SQLite and Python 01:57:05 – Cookies and Sessions 02:02:47 – Shopping Cart 02:15:55 – Shows 02:20:29 – APIs *** HOW TO SUBSCRIBE HOW TO TAKE CS50 edX: Harvard Extension School: Harvard Summer School: OpenCourseWare: HOW TO JOIN CS50 COMMUNITIES Bluesky: Discord: Ed: Facebook Group: Faceboook Page: GitHub: Gitter: Instagram: LinkedIn Group: LinkedIn Page: Medium: Quora: Reddit: Slack: Snapchat: SoundCloud: Stack Exchange: Telegram: Threads: TikTok: Twitter: Twitter Community: YouTube: HOW TO FOLLOW DAVID J. MALAN Facebook: GitHub: Instagram: LinkedIn: Quora: Threads: TikTok: Twitter: *** CS50 SHOP *** LICENSE CC BY-NC-SA 4.0 Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International Public License David J. Malan [email protected]