code: def test_with_different_versions_of_python(self):
      rdd = self.sc.parallelize(range(10))
      rdd.count()
      version = self.sc.pythonVer
      self.sc.pythonVer = "2.0"
      try:
          with QuietTest(self.sc):
              self.assertRaises(Py4JJavaError, lambda: rdd.count())
      finally:
          self.sc.pythonVer = version
  
imports: import os
  import sys
  import tempfile
  import threading
  import time
  import unittest
  from py4j.protocol import Py4JJavaError
  from pyspark import SparkConf, SparkContext
  from pyspark.testing.utils import ReusedPySparkTestCase, PySparkTestCase, QuietTest, eventually
label_desc: Use image node_id 7 for calling the WorkerTests obj's underlying member method code with example usage: obj.test_with_different_versions_of_python() without return types