Snapping an object to another object vertex in Maya over Python Script

I want to snap / align an object A to vertex of object B. I have tried using below script but its not snapping exactly to the vertex but snapping with an offset. Can any one suggest me a solution. Here are the snapshots.

import maya.cmds as cmds

vertices = [];
srcObj = "pCone1";

def snapToVertex(vertex,object):

    cmds.select(vertex);
    x,y,z = cmds.pointPosition();
    cmds.select(object);
    cmds.duplicate();
    cmds.move(x,y,z);

def processTask():

    cmds.select( cmds.polyListComponentConversion( tv=True ) );        
    vertices = cmds.ls(sl = True);

    print vertices;
    for vrtx in vertices:
        snapToVertex(vrtx,srcObj);

processTask();

Snapped with my above Script, Which didn't snap exactly to vertex.

But it should be snapped exactly to the Vervex's as below image.