old_contents: from django import forms
  
  from models import Package
  
  def _get_widget(placeholder):
      return forms.TextInput(attrs={'placeholder':placeholder})
  
  class PackageForm(forms.ModelForm):
  
      class Meta:
          model = Package
          widgets = {
              'name': _get_widget('Enter package name')
              }
  
  
  
new_contents: from django import forms
  
  from models import Package
  
  def _get_widget(placeholder):
      return forms.TextInput(attrs={'placeholder':placeholder})
  
  class PackageForm(forms.ModelForm):
  
      class Meta:
          exclude = []
          model = Package
          widgets = {
              'name': _get_widget('Enter package name')
              }
  
  
  
subject: Add exclude = [] to forms.py - required by Django >= 1.8. Fixes #3.