old_contents: from django.forms import Textarea
  from django.db import models
  
  
  class HTMLField(models.TextField):
      field_class = 'mceEditor'
  
      def formfield(self, **kwargs):
          kwargs.update(
              {"widget": Textarea(attrs={'class': self.field_class})}
          )
          return super(HTMLField, self).formfield(**kwargs)
  
  
  class HTMLBigField(HTMLField):
      field_class = 'mceLongEditor'
  
  
  try:
      # in case south is installed
      from south.modelsinspector import add_introspection_rules
      add_introspection_rules([], ["^picocms\.fields\.HTMLField"])
      add_introspection_rules([], ["^picocms\.fields\.HTMLBigField"])
  except:
      pass
  
new_contents: from django.forms import Textarea
  from django.db import models
  
  
  class HTMLField(models.TextField):
      field_class = 'mceEditor'
  
      def formfield(self, **kwargs):
          kwargs.update(
              {"widget": Textarea(attrs={'class': self.field_class})}
          )
          return super(HTMLField, self).formfield(**kwargs)
  
  
  class HTMLBigField(HTMLField):
      field_class = 'mceLongEditor'
  
  
  try:
      # in case south is installed
      from south.modelsinspector import add_introspection_rules
      add_introspection_rules([], ["^picocms\.fields\.HTMLField"])
      add_introspection_rules([], ["^picocms\.fields\.HTMLBigField"])
  except ImportError:
      pass
  
subject: Update picocms/fields.py