def _command_line_ok(_cache=[]):
if _cache:<EOL><INDENT>return _cache[<NUM_LIT:0>]<EOL><DEDENT>ok = True<EOL>display_opts = ['<STR_LIT>'+n for n in Distribution.display_option_names]<EOL>for o in Distribution.display_options:<EOL><INDENT>if o[<NUM_LIT:1>]:<EOL><INDENT>display_opts.append('<STR_LIT:->'+o[<NUM_LIT:1>])<EOL><DEDENT><DEDENT>for arg in sys.argv:<EOL><INDENT>if arg.startswith('<STR_LIT>') or arg=='<STR_LIT>' or arg in display_opts:<EOL><INDENT>ok = False<EOL>break<EOL><DEDENT><DEDENT>_cache.append(ok)<EOL>return ok<EOL>
Return True if command line does not contain any
    help or display requests.