Python finally offloads some batteries

I don't know. Doing that has the advantage that moving things in and out of core is uncontroversial and done routinely, and that things that leave core are *still easily accessible* (to the majority of users who can install stuff as needed), because they're still on CPAN. This in turn is easy because the majority of the standard library is maintained using the same build system as CPAN, so moving things from core to CPAN or dual-lifing them in both is literally a matter of running a couple of commands: almost no source changes are usually needed. In Python, my impression is that migrating a module is quite a big job, so there's a temptation to just drop it and leave it nowhere and its few remaining users out in the cold.