Oh, and issue24960 is not the same. That one is related primarily to having the entire standard library in a zip file. That may be the case for the embeddable distro, but the embeddable distro is also not intended to support installing packages itself, so it is out of scope. (Though there's a possibility that the grammar files are not generated in the Nuget packages either, so you may need to use a full install for packages requiring 2to3.)