old_contents: from __future__ import absolute_import, unicode_literals
  
  from django.template.loader import render_to_string
  from django.utils.safestring import mark_safe
  from django.utils.translation import ugettext as _
  
  from wagtail.wagtailadmin.edit_handlers import EditHandler
  
  
  class BaseFormSubmissionsPanel(EditHandler):
      template = "wagtailforms/edit_handlers/form_responses_panel.html"
  
      def render(self):
          from .models import FormSubmission
          submissions = FormSubmission.objects.filter(page=self.instance)
  
          if not submissions:
              return ''
  
          return mark_safe(render_to_string(self.template, {
              'self': self,
              'submissions': submissions
          }))
  
  
  class FormSubmissionsPanel(object):
      def __init__(self, heading=None):
          self.heading = heading
  
      def bind_to_model(self, model):
          heading = _('{} submissions').format(model._meta.model_name)
          return type(str('_FormResponsesPanel'), (BaseFormSubmissionsPanel,), {
              'model': model,
              'heading': self.heading or heading,
          })
  
new_contents: from __future__ import absolute_import, unicode_literals
  
  from django.template.loader import render_to_string
  from django.utils.safestring import mark_safe
  from django.utils.translation import ugettext as _
  
  from wagtail.wagtailadmin.edit_handlers import EditHandler
  
  
  class BaseFormSubmissionsPanel(EditHandler):
      template = "wagtailforms/edit_handlers/form_responses_panel.html"
  
      def render(self):
          from .models import FormSubmission
          submissions = FormSubmission.objects.filter(page=self.instance)
  
          if not submissions:
              return ''
  
          return mark_safe(render_to_string(self.template, {
              'self': self,
              'submissions': submissions
          }))
  
  
  class FormSubmissionsPanel(object):
      def __init__(self, heading=None):
          self.heading = heading
  
      def bind_to_model(self, model):
          heading = _('{} submissions').format(model.get_verbose_name())
          return type(str('_FormResponsesPanel'), (BaseFormSubmissionsPanel,), {
              'model': model,
              'heading': self.heading or heading,
          })
  
subject: Use verbose name for FormSubmissionsPanel heading