old_contents: """
  Module with some interface for a degree of portability between different
  JSON implementations available with different python versions.
  """
  import os
  
  def _get_json_impl():
      """
      Get available JSON implementation
  
      XXX: This is quite annoying as there _are_ differences between them
      that break unit tests on python2.5 vs 2.6 vs 2.7. Consider dropping
      one good JSON library as bundled dependency since this is such a
      core feature is should not break randomly.
      """
      impl = os.getenv("JSON_IMPL", "auto")
      if impl == "auto":
          try:
              import json
          except ImportError:
              import simplejson as json
      elif impl == "json":
          import json
      elif impl == "simplejson":
          import simplejson as json
      else:
          raise ImportError("Environment variable JSON_IMPL must be one of 'auto', 'json', 'simplejson'")
      return json
  
  json = _get_json_impl()
  
new_contents: """
  Module with some interface for a degree of portability between different
  JSON implementations available with different python versions.
  """
  import os
  
  # Temporary workaround, unit tests in other module will break import
  # json below (inhibit protect prevents this module from being reloaded)
  __inhibit_protect__ = True
  
  def _get_json_impl():
      """
      Get available JSON implementation
  
      XXX: This is quite annoying as there _are_ differences between them
      that break unit tests on python2.5 vs 2.6 vs 2.7. Consider dropping
      one good JSON library as bundled dependency since this is such a
      core feature is should not break randomly.
      """
      impl = os.getenv("JSON_IMPL", "auto")
      if impl == "auto":
          try:
              import json
          except ImportError:
              import simplejson as json
      elif impl == "json":
          import json
      elif impl == "simplejson":
          import simplejson as json
      else:
          raise ImportError("Environment variable JSON_IMPL must be one of 'auto', 'json', 'simplejson'")
      return json
  
  json = _get_json_impl()
  
subject: Add __inhibit_protect__ to utils.json.impl as a temporary workaround