ptvsd (Python Tools for Visual Studio Debugger)

ptvsd is a remote debugging server for Python, primarily used to enable debugging capabilities in development environments like Visual Studio and Visual Studio Code. While its last stable release was 4.3.2 in August 2019, it has largely been superseded by `debugpy`, which is based on ptvsd's development branch. All future development for Microsoft's Python debugger is happening in `debugpy`.