Building a Safer Python Sandbox with MicroPython and WebAssembly

Plugin systems enable rapid feature development but introduce security risks—buggy or malicious code can compromise the host application or leak private data. MicroPython integrated with WebAssembly provides a practical sandbox that enforces memory and CPU limits while controlling file and network access, solving a long-standing challenge for secure plugin execution in Python applications. This approach is particularly significant as it requires no additional installation steps for users, making sandboxed plugins accessible to projects like Datasette.