code: def __init__(self, *args, **kw):
      self.package_name = "PACKAGE_"
      while self.package_name in sys.modules:
          self.package_name += random.choice(string.ascii_letters)
      self.module_name = self.package_name + ".foo"
      unittest.TestCase.__init__(self, *args, **kw)
  
file_path: cpython/Lib/test/test_importlib/test_pkg_import.py
imports: import os
  import sys
  import shutil
  import string
  import random
  import tempfile
  import unittest
  from importlib.util import cache_from_source
  from test.support.os_helper import create_empty_file
label_desc: Use image node_id 1 to create a new TestImport object from inherited base classes: unittest with example: obj = TestImport()