Ditched '_find_SET()', since it was a no-value-added wrapper around   'get_msvc_paths()'. Renamed '_do_SET()' to 'set_path_env_var()', tweaked docstring, and   cosmetically tweaked code. Stylistic changes to MSVCCompiler constructor (variable renaming   and type consistency).
Ditched '_find_SET()', since it was a no-value-added wrapper around
  'get_msvc_paths()'.
Renamed '_do_SET()' to 'set_path_env_var()', tweaked docstring, and
  cosmetically tweaked code.
Stylistic changes to MSVCCompiler constructor (variable renaming
  and type consistency).

pypa/setuptools,pypa/setuptools,pypa/setuptools