old_contents: """Admin of Zinnia CMS Plugins"""
  from django.contrib import admin
  from django.template import RequestContext
  from django.utils.translation import ugettext_lazy as _
  
  from cms.plugin_rendering import render_placeholder
  from cms.admin.placeholderadmin import PlaceholderAdmin
  
  from zinnia.models import Entry
  from zinnia.admin.entry import EntryAdmin
  from zinnia.settings import ENTRY_BASE_MODEL
  
  
  class EntryPlaceholderAdmin(PlaceholderAdmin, EntryAdmin):
      """EntryPlaceholder Admin"""
      fieldsets = ((None, {'fields': ('title', 'image', 'status')}),
                   (_('Content'), {'fields': ('content_placeholder',),
                                   'classes': ('plugin-holder',
                                               'plugin-holder-nopage')})) + \
                                               EntryAdmin.fieldsets[1:]
  
      def save_model(self, request, entry, form, change):
          """Fill the content field with the interpretation
          of the placeholder"""
          context = RequestContext(request)
          entry.content = render_placeholder(entry.content_placeholder, context)
          super(EntryPlaceholderAdmin, self).save_model(
              request, entry, form, change)
  
  
  if ENTRY_BASE_MODEL == 'cmsplugin_zinnia.placeholder.EntryPlaceholder':
      admin.site.unregister(Entry)
      admin.site.register(Entry, EntryPlaceholderAdmin)
  
new_contents: """Admin of Zinnia CMS Plugins"""
  from django.contrib import admin
  from django.template import RequestContext
  from django.utils.translation import ugettext_lazy as _
  
  from cms.plugin_rendering import render_placeholder
  from cms.admin.placeholderadmin import PlaceholderAdmin
  
  from zinnia.models import Entry
  from zinnia.admin.entry import EntryAdmin
  from zinnia.settings import ENTRY_BASE_MODEL
  
  
  class EntryPlaceholderAdmin(PlaceholderAdmin, EntryAdmin):
      """EntryPlaceholder Admin"""
      fieldsets = (
          (None, {'fields': ('title', 'image', 'status')}),
          (_('Content'), {'fields': ('content_placeholder',),
                          'classes': ('plugin-holder',
                                      'plugin-holder-nopage')})) + \
          EntryAdmin.fieldsets[1:]
  
      def save_model(self, request, entry, form, change):
          """Fill the content field with the interpretation
          of the placeholder"""
          context = RequestContext(request)
          entry.content = render_placeholder(entry.content_placeholder, context)
          super(EntryPlaceholderAdmin, self).save_model(
              request, entry, form, change)
  
  
  if ENTRY_BASE_MODEL == 'cmsplugin_zinnia.placeholder.EntryPlaceholder':
      admin.site.unregister(Entry)
      admin.site.register(Entry, EntryPlaceholderAdmin)
  
subject: Fix overrindentation