checkInputs used to be added to nativeBuildInputs. Now we have nativeCheckInputs to do that instead. Doing this treewide change allows to keep hashes identical to before the introduction of nativeCheckInputs.
Some improvements discussed [here](https://github.com/NixOS/nixpkgs/pull/208157) after the first merge.
remove wrapPython
This package is needed by many new gtk apps.