Python: replace mkPythonDerivation with buildPythonPackage and format="other";

This way all Python packages use the same function,
`buildPythonPackage`.

pkgs/misc/drivers/hplip/default.nix

@@ -47,8 +47,9 @@ in
 assert withPlugin -> builtins.elem hplipArch pluginArches
   || throw "HPLIP plugin not supported on ${stdenv.system}";
 
-pythonPackages.mkPythonDerivation {
+pythonPackages.buildPythonApplication {
   inherit name src;
+  format = "other";
 
   buildInputs = [
     libjpeg