old_contents: # -*- coding: utf-8 -*-
  
  from __future__ import absolute_import, unicode_literals
  
  # Import the fastest implementation of
  # pickle package. This should be removed
  # when python3 come the unique supported
  # python version
  try:
      import cPickle as pickle
  except ImportError:
      import pickle
  
  from django.core.exceptions import ImproperlyConfigured
  
  try:
      from django.utils.encoding import force_bytes
      from django.utils.encoding import force_text
  except ImportError:
      from django.utils.encoding import smart_bytes as force_bytes
      from django.utils.encoding import force_unicode as force_text
  
  
  from .base import BaseSerializer
  
  
  class PickleSerializer(BaseSerializer):
      def __init__(self, options):
          self._pickle_version = -1
          self.setup_pickle_version(options)
  
      def setup_pickle_version(self, options):
          if "PICKLE_VERSION" in options:
              try:
                  self._pickle_version = int(self._options["PICKLE_VERSION"])
              except (ValueError, TypeError):
                  raise ImproperlyConfigured("PICKLE_VERSION value must be an integer")
  
      def dumps(self, value):
          return pickle.dumps(value, self._pickle_version)
  
      def loads(self, value):
          return pickle.loads(force_bytes(value))
  
new_contents: # -*- coding: utf-8 -*-
  
  from __future__ import absolute_import, unicode_literals
  
  # Import the fastest implementation of
  # pickle package. This should be removed
  # when python3 come the unique supported
  # python version
  try:
      import cPickle as pickle
  except ImportError:
      import pickle
  
  from django.core.exceptions import ImproperlyConfigured
  
  try:
      from django.utils.encoding import force_bytes
      from django.utils.encoding import force_text
  except ImportError:
      from django.utils.encoding import smart_bytes as force_bytes
      from django.utils.encoding import force_unicode as force_text
  
  
  from .base import BaseSerializer
  
  
  class PickleSerializer(BaseSerializer):
      def __init__(self, options):
          self._pickle_version = -1
          self.setup_pickle_version(options)
  
      def setup_pickle_version(self, options):
          if "PICKLE_VERSION" in options:
              try:
                  self._pickle_version = int(options["PICKLE_VERSION"])
              except (ValueError, TypeError):
                  raise ImproperlyConfigured("PICKLE_VERSION value must be an integer")
  
      def dumps(self, value):
          return pickle.dumps(value, self._pickle_version)
  
      def loads(self, value):
          return pickle.loads(force_bytes(value))
  
subject: Fix small mistake; options is a argument, not a member.