zero.py

#zeroes selected attrs in channelbox

import maya.cmds as mc
import maya.mel as mel

vSel = mc.ls(sl=True)

for i in vSel:
	gChannelBoxName = mel.eval('$temp=$gChannelBoxName')
	vAttrs = mc.channelBox (gChannelBoxName, q=True, sma = True)
	if not vAttrs:
		vAttrs = cmds.listAttr(i, s=True, w=True, k=True, u=True)
		for j in vAttrs:
			vDefault = cmds.attributeQuery(j, node=i, listDefault=True)[0]
			cmds.setAttr(i+'.'+j,vDefault)
	else:
	    for j in vAttrs:
	        vDefault = mc.attributeQuery(j, node=i, listDefault=True)[0]
	        mc.setAttr(i+'.'+j,vDefault)