old_contents: from django import forms
  from longclaw.longclawshipping.models import ShippingRate
  
  class CheckoutForm(forms.Form):
      '''
      Captures extra info required for checkout
      '''
      email = forms.EmailField()
      shipping_option = forms.CharField(widget=forms.Select)
      different_billing_address = forms.BooleanField(required=False)
      class Media:
          js = ('checkout.js',)
  
new_contents: from django import forms
  from longclaw.longclawshipping.models import ShippingRate
  
  class CheckoutForm(forms.Form):
      '''
      Captures extra info required for checkout
      '''
      email = forms.EmailField()
      shipping_option = forms.CharField(widget=forms.Select, required=False)
      different_billing_address = forms.BooleanField(required=False)
      class Media:
          js = ('checkout.js',)
  
subject: Fix tests