在创建object的时候，不设置COLOR 选项即可。

如何让CGO 中的sphere 具有cmd.distance的功能，继续探索中。

#! python2 pymol
#coding: utf-8

from pymol.cgo import *
from pymol import cmd

COLOR_dict={}
COLOR_dict['red']=[255,0,0]
COLOR_dict['green']=[0,255,0]
COLOR_dict['blue']=[0,0,255]
COLOR_dict['yellow']=[255,255,0]
RADIUS=0.3


def showpointcgo(points,name,color):
  # obj = [BEGIN, LINES,COLOR,]    #initialize obj, color is white
   obj = [BEGIN, LINES,]    #initialize obj, color is white
   #obj.extend(COLOR_dict[color])
  # obj.extend(cmd.get_color_tuple(color))
   for a in points:                            #visualization of oulist (points that are too far off the protein (cube edges))
       obj.append(SPHERE)
       obj.append(float(a[0]))
       obj.append(float(a[1]))
       obj.append(float(a[2]))
       obj.append(RADIUS)
   obj.append(END)
   
   #print obj
   #DO NOT try to visualize empty lists --> PyMOL would crash
   if len(points) != 0:  
       print "len of points",len(points)      
       cmd.load_cgo(obj, name)
       cmd.color(color,name)
       #cmd.hide('cgo')
   else:
       print "No Points Founded"
   cmd.zoom('all')