Check missing faces

import maya.cmds as cmds

# get the currently selected object
sel = cmds.ls(selection=True)
if not sel:
    print('Error: no object selected')
else:
    # get the number of vertices, edges, and faces for the selected object
    num_verts = cmds.polyEvaluate(vertex=True)
    num_edges = cmds.polyEvaluate(edge=True)
    num_faces = cmds.polyEvaluate(face=True)

    # calculate the expected number of faces based on the number of vertices and edges
    expected_faces = num_edges - num_verts + 2

    # check if the actual number of faces matches the expected number
    if num_faces != expected_faces:
        print('Selected object has missing faces')
    else:
        print('Selected object is complete')