Hi, while trying to vendor packages that depend on six, i noticed a problematic implication it is impossible to do this without patching those modules, as such adding a fragile maintenance burden. in order to elevate that i propose creating a mechanism that allows to physically or virtually map sets of interdependent libraries (that are prepared for it into a sub-package of the package vendor-ing it this would elevate a few issues a) removing the need to patch b) making de-vendor-ing of exact versions trivial (just unpacked wheels and adding it to the sub-packages __path__) c) easing updates, as the vendor-ing turns into a process of fetching the wheels and unpacking them into the package folder i do have some implementation ideas, but i would like to hear the opinions of others before proposing an exact implementation -- Ronny