Running Python Locally in a Sandbox | Real Python Podcast #301

How do you avoid the risk of running a Python application locally that could be malicious, break your code, or leak private data? How can you create a sandboxed local environment using WASM and MicroPython? Christopher Trudeau is back on the show this week with another batch of PyCoder's Weekly articles and projects. 👉 Links from the show: https://realpython.com/podcasts/rpp/301/ We cover a recent article by previous guest Simon Willison titled "Running Python code in a sandbox with MicroPython and WASM." Simon has been experimenting for years on how to run Python code in a sandbox to reduce the risk of trying out new software, untrusted libraries, and wild ideas. He's developed a solution using WASM and MicroPython and is sharing it as an alpha package on PyPI. We also share other articles and projects from the Python community, including new releases, community announcements, a roundup of recent Real Python tutorials and video courses, a plugin case study using Pluggy, are you expected to run five type-checkers now, wrapping programs using the subprocess module, a project for star charts and maps, and a tool for trend detection in Python. This episode is sponsored by DataDriven: (https://datadriven.io/?utm_source=rea...) Topics: 00:00:00 -- Introduction 00:02:48 -- PSF Board Election Dates for 2026 00:03:28 -- Python 3.15.0 beta 3 is here! 00:03:58 -- PEP 835: Shorthand Syntax for Annotated Type Metadata 00:05:13 -- Announcing the Search for a DSF Executive Director 00:05:53 -- Django 6.1 beta 1 released 00:06:24 -- PyData London 26 Videos Released 00:06:50 -- Implementing Interfaces in Python: ABCs and Protocols 00:07:36 -- Building Python Skills for the Job Market 00:08:21 -- Context Engineering for Python Codebases 00:09:14 -- Python for Data Analysis: A Practical Guide 00:09:47 -- Using LlamaIndex for RAG in Python 00:10:07 -- Django Tasks: Exploring the Built-in Tasks Framework 00:10:59 -- Plugins Case Study: Pluggy 00:15:10 -- Sponsor: DataDriven 00:15:57 -- Pyodide 314.0 Release 00:18:54 -- Python in a Sandbox With MicroPython and WASM 00:22:35 -- The subprocess Module: Wrapping Programs With Python 00:30:08 -- Spotlight: Codex for Python Developers 00:31:51 -- Are You Expected to Run 5 Type-Checkers Now? 00:39:41 -- starplot: ✨ Star charts and maps in Python 00:42:01 -- marimo-tutorials: Collection of Marimo Tutorials 00:42:48 -- pytrendy: Trend Detection in Python 00:44:35 -- Thanks and goodbye 👉 Links from the show: https://realpython.com/podcasts/rpp/301/ Download your free Python Cheat Sheet here: https://realpython.com/cheatsheet Free Python Skill Test with instant level + learning plan: https://realpython.com/skill-test Want to learn faster? Become a Python Expert with unlimited access to 5,000+ tutorials, videos, and exercises: https://realpython.com/start 🐍 Become a Python expert with real-world tutorials, on-demand courses, interactive quizzes, and 24/7 access to a community of experts at https://realpython.com ▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰ 🐍 Start Here → https://realpython.com/start 🗺️ Guided Learning Paths → https://realpython.com/learning-paths 🎧 Real Python Podcast → https://realpython.com/podcast 📚 Python Books → https://realpython.com/books 📖 Python Reference → https://realpython.com/ref 🧑‍💻 Quizzes & Exercises → https://realpython.com/quizzes 🎓 Live Courses: https://realpython.com/live ⭐️ Reviews & Learner Stories: https://realpython.com/learner-stories ▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰▰