code: def test_recursion_limit(self):
      # Check if the problem described in patch #1413711 exists.
      limit = sys.getrecursionlimit()
      old = [
          (i % 2 and "K:%d" or "V:A:%d") % i for i in range(limit * 2)
      ]
      new = [
          (i % 2 and "K:%d" or "V:B:%d") % i for i in range(limit * 2)
      ]
      difflib.SequenceMatcher(None, old, new).get_opcodes()
  
imports: import difflib
  from test.support import findfile
  import unittest
  import doctest
  import sys
label_desc: Use image node_id 2 for calling the TestSFpatches obj's underlying member method code with example usage: obj.test_recursion_limit() without return types