Prints elements id of selected elements

MayaHandfulSnipplets.py

import maya.api.OpenMaya as om2

#get vertices ID of selected faces
sel = om2.MSelectionList()
sel = om2.MGlobal.getActiveSelectionList()
dp, comp = sel.getComponent(0)
mItVtx = om2.MItMeshPolygon(dp,comp)
idx = []
while not mItVtx.isDone():
    point = mItVtx.getVertices()
    idx.extend(point)
    mItVtx.next(0)
print list( set( idx ) )

##################################################

import maya.api.OpenMaya as om2
#get vertices ID of selected components
sel = om2.MSelectionList()
sel = om2.MGlobal.getActiveSelectionList()
dp, comp = sel.getComponent(0)
compFn = om2.MFnSingleIndexedComponent(comp)
ids = om2.MIntArray()
ids = compFn.getElements()

print ids


import maya.api.OpenMaya as om2
#iterate with specified face IDs
poly_ids = [0, 2, 4, 5]
selL = om2.MSelectionList()
selL.add('pSphere1')
mObj = om2.MObject()
mObj = selL.getDagPath( 0 )

mItVtx = om2.MItMeshPolygon(mObj)	
for x in poly_ids:
	mItVtx.setIndex(x)
	point = mItVtx.getVertices()
	print point


mItVtx = om2.MItMeshPolygon(mObj)	
mItVtx.setIndex(2)
point = mItVtx.getVertices()
print point