先上结果

from pymol import util

util.color_objs("all")

再上分析

modules/pymol/menu.py

def color_auto(self_cmd, sele):
    return [
        [ 2, 'Auto'     ,''                               ],
        [ 1, 'elem c', 'cmd.color("auto","('+sele+') and elem c")' ],
        [ 0, ''                                , ''                 ],
        [ 1, 'all','cmd.color("auto","'+sele+'")' ],                  
        [ 0, ''                                , ''                 ],
        [ 1, '\\900b\\950y \\090o\\099b\\059j\\999(e. c)',
          'util.color_objs("('+sele+' and elem c)",_self=cmd)'],
        [ 1, '\\900b\\950y \\090o\\099b\\059j',
          'util.color_objs("('+sele+')",_self=cmd)'],
]