For a variety of reasons, I would like to build an index of what
modules/packages are contained in which distributions ('packages') on
PyPI. For instance:- Identifying requirements by static analysis of code: 'import zmq' -> requires pyzmq - Finding corresponding packages from different packaging systems: pyzmq on PyPI corresponds to pyzmq in conda, and python[3]-zmq in Debian repositories. This is an oversimplification, but importable module names provide a common basis to compare packages. I'd like a tool that could pick between different ways of installing a given module. People often assume that the import name is the same as the name on PyPI. This is true in the vast majority of cases, but there's no requirement that they are the same, and there are cases where they're not - pyzmq is one example. The metadata field 'Provides' is, according to PEP 314, intended for this purpose, but the standard packaging tools don't make it easy to use, and consequently very few packages specify it. I have started putting together a tool to index wheels. It reads a .whl file, finds modules inside it, and tries to identify namespace packages. It's still quite rough, but it worked with the wheels I tried. https://github.com/takluyver/wheeldex Is this something that other people are interested in? One thing I'm trying to work out at the moment is how the data would be accessed: as a web service that tools can query online, or more like Linux packaging, where tools download and cache a list to do lookups locally. Or both? There's also, of course, the question of how the index would be built and updated. Thanks, Thomas _______________________________________________ Distutils-SIG maillist - [email protected] https://mail.python.org/mailman/listinfo/distutils-sig
