[Distutils] why do we still put version numbers into dist-info folders

Hi everyone, a while now i have wondered - why put version numbers into the dist info folders not only makes it lookup more expensive (need to search for a distribution->folder map) its also not serving a purpose, as the rest of the package is unversioned at the root of site-packages. in addition all those versions in folder names, that serve no purpose, and create duplication/conflicts now creep into other peps as well, please lets take a note at setuptools - for editable installs it wont put a version in to the egg info folder and imho thats the correct way to deal with data thats not actually versioned at that level where its being stored. -- Ronny