old_contents: from django import forms
  from django.utils import simplejson as json
  from django.utils import six
  
  from .widgets import JSONWidget
  
  
  class JSONFormField(forms.CharField):
      def __init__(self, *args, **kwargs):
          if 'widget' not in kwargs:
              kwargs['widget'] = JSONWidget
          super(JSONFormField, self).__init__(*args, **kwargs)
  
      def clean(self, value):
          """
          The default is to have a TextField, and we will decode the string
          that comes back from this. However, another use of this field is
          to store a list of values, and use these in a MultipleSelect
          widget. So, if we have an object that isn't a string, then for now
          we will assume that is where it has come from.
          """
          value = super(JSONFormField, self).clean(value)
  
          if not value:
              return value
  
          if isinstance(value, six.string_types):
              try:
                  return json.loads(value)
              except Exception as exc:
                  raise forms.ValidationError(
                      'JSON decode error: %s' % (unicode(exc),)
                  )
          else:
              return value
  
new_contents: from django import forms
  import json
  from django.utils import six
  
  from .widgets import JSONWidget
  
  
  class JSONFormField(forms.CharField):
      def __init__(self, *args, **kwargs):
          if 'widget' not in kwargs:
              kwargs['widget'] = JSONWidget
          super(JSONFormField, self).__init__(*args, **kwargs)
  
      def clean(self, value):
          """
          The default is to have a TextField, and we will decode the string
          that comes back from this. However, another use of this field is
          to store a list of values, and use these in a MultipleSelect
          widget. So, if we have an object that isn't a string, then for now
          we will assume that is where it has come from.
          """
          value = super(JSONFormField, self).clean(value)
  
          if not value:
              return value
  
          if isinstance(value, six.string_types):
              try:
                  return json.loads(value)
              except Exception as exc:
                  raise forms.ValidationError(
                      'JSON decode error: %s' % (unicode(exc),)
                  )
          else:
              return value
  
subject: Remove simplejson