I'm not. Python takes great strides to ensure backwards compatibility - because there's seemingly endless demand for it. Keep in mind 2.7 got a patch months after its planned EOL, which was already extended an extra 5 years from the regular release schedule, and major projects like Pip maintained support for well beyond that point, and people still complained.

There's significant hysteresis in the project: a strong reluctance to remove things that they would never even remotely consider adding today if they didn't already exist. After all: if it already exists, someone might still be using it (and it's harder to gather that kind of information, the older the thing in question is); but adding it new would create a maintenance burden (never mind that the old rarely-used stuff doesn't really get maintained).