208 def search_up(prefix, *landmarks, test=isfile):  argument
223 prefix = config.get('prefix')  variable
519             prefix = build_stdlib_prefix  variable
538     prefix = exec_prefix = ''  variable
545         prefix, had_delim, exec_prefix = home.partition(DELIM)  variable
559                     prefix = library_dir  variable
561                 prefix = search_up(library_dir, ZIP_LANDMARK)  variable
564                 prefix = library_dir  variable
573                 prefix = executable_dir  variable
575             prefix = search_up(executable_dir, ZIP_LANDMARK)  variable
584         prefix = search_up(executable_dir, *STDLIB_LANDMARKS)  variable
589         prefix = PREFIX  variable
594         prefix = abspath('')  variable
746     prefix = config.get('prefix') or PREFIX  variable