code: def test_compilestring(self):
      # see #1882
      c = compile(
          b"\n# coding: utf-8\nu = '\xc3\xb3'\n", "dummy", "exec"
      )
      d = {}
      exec(c, d)
      self.assertEqual(d["u"], "\xf3")
  
imports: import unittest
  from test.support import script_helper, captured_stdout, requires_subprocess, requires_resource
  from test.support.os_helper import TESTFN, unlink, rmtree
  from test.support.import_helper import unload
  import importlib
  import os
  import sys
  import subprocess
  import tempfile
label_desc: Use image node_id 2 for calling the MiscSourceEncodingTest obj's underlying member method code with example usage: obj.test_compilestring() without return types