old_contents: import glob
  from typing import Any, MutableMapping
  
  from pybind11.setup_helpers import Pybind11Extension, build_ext
  
  ext_modules = [
      Pybind11Extension(
          name="slumba.cslumba",
          sources=sorted(glob.glob("slumba/*.cc")),
          libraries=["sqlite3"],
      )
  ]
  
  
  def build(setup_kwargs: MutableMapping[str, Any]) -> None:
      """This function is mandatory in order to build the extensions."""
  
      setup_kwargs.update(
          {"ext_modules": ext_modules, "cmdclass": {"build_ext": build_ext}}
      )
  
new_contents: from typing import Any, MutableMapping
  
  from pybind11.setup_helpers import Pybind11Extension, build_ext
  
  ext_modules = [
      Pybind11Extension(
          name="slumba.cslumba",
          sources=["slumba/cslumba.cc"],
          libraries=["sqlite3"],
      )
  ]
  
  
  def build(setup_kwargs: MutableMapping[str, Any]) -> None:
      """This function is mandatory in order to build the extensions."""
  
      setup_kwargs.update(
          {"ext_modules": ext_modules, "cmdclass": {"build_ext": build_ext}}
      )
  
subject: remove unnecessary sorted and globbing