code: def test_module_not_found(pytester: Pytester, file_structure) -> None:
      """Without the pythonpath setting, the module should not be found."""
      pytester.makefile(".ini", pytest="[pytest]\n")
      result = pytester.runpytest("test_foo.py")
      assert result.ret == pytest.ExitCode.INTERRUPTED
      result.assert_outcomes(errors=1)
      expected_error = "E   ModuleNotFoundError: No module named 'foo'"
      result.stdout.fnmatch_lines([expected_error])
  
file_path: pytest/testing/test_python_path.py
imports: import sys
  from textwrap import dedent
  from typing import Generator
  from typing import List
  from typing import Optional
  import pytest
  from _pytest.pytester import Pytester
label_desc: Use image node_id 4 for calling a global function with example usage: test_module_not_found(pytester, file_structure) without return types