code: def test_import_pubchem_mol_data():
      """Test that an exception is caught on import error for pubchempy"""
  
      with pytest.raises(
          ImportError, match="This feature requires pubchempy"
      ):
          qchem.mol_data(227, "CID")
  
imports: import os
  import sys
  import functools
  from unittest.mock import patch
  import pytest
  import pennylane
  from pennylane import qchem
  from pennylane import numpy
  from pennylane.templates.subroutines import UCCSD
label_desc: Use image node_id 15 for calling a global function with example usage: test_import_pubchem_mol_data() without return types