def untracked(prefix, exclude_self_build=False):
 conda_files = conda_installed_files(prefix, exclude_self_build)
 return {path for path in (walk_prefix(prefix) - conda_files) if (not (path.endswith(u'~') or ((sys.platform == u'darwin') and path.endswith(u'.DS_Store')) or (path.endswith(u'.pyc') and (path[:(-1)] in conda_files))))}

def untracked ( prefix , exclude_self_build = False ) : conda_files = conda_installed_files ( prefix , exclude_self_build ) return { path for path in ( walk_prefix ( prefix ) - conda_files ) if ( not ( path . endswith ( u'~' ) or ( ( sys . platform == u'darwin' ) and path . endswith ( u'.DS_Store' ) ) or ( path . endswith ( u'.pyc' ) and ( path [ : ( - 1 ) ] in conda_files ) ) ) ) }
return of all untracked files for a given prefix .