code: def test_no_pythonpath(self):
      with patch("os.environ", {}) as d:
          self.assertFalse(
              file_util.file_in_pythonpath(
                  self._make_it_absolute(
                      "../something/dir1/dir2/module"
                  )
              )
          )
  
imports: import errno
  import os
  import unittest
  from unittest.mock import MagicMock, mock_open, patch
  import pytest
  from streamlit import file_util, util
label_desc: Use image node_id 2 for calling the FileInPythonPathTest obj's underlying member method code with example usage: obj.test_no_pythonpath() without return types