这可能有帮助:
import maya.cmds as cmds
indices = cmds.getAttr("ramp1.colorEntryList", mi=True)
for i in indices:
p=cmds.getAttr("ramp1.colorEntryList[" + str(i) + "].position")
print(p)
c=cmds.getAttr("ramp1.colorEntryList[" + str(i) + "].color")
print(c)