move currency formatting into template

lms/djangoapps/shoppingcart/views.py

@@ -51,12 +51,11 @@ def register_for_verified_cert(request, course_id):
 def show_cart(request):
     cart = Order.get_cart_for_user(request.user)
     total_cost = cart.total_cost
-    amount = "{0:0.2f}".format(total_cost)
     cart_items = cart.orderitem_set.all()
     form_html = render_purchase_form_html(cart)
     return render_to_response("shoppingcart/list.html",
                               {'shoppingcart_items': cart_items,
-                               'amount': amount,
+                               'amount': total_cost,
                                'form_html': form_html,
                                })
 

lms/templates/shoppingcart/list.html

@@ -21,7 +21,7 @@
                 <td><a data-item-id="${item.id}" class='remove_line_item' href='#'>[x]</a></td></tr>
             % endfor
             <tr><td></td><td></td><td></td><td>${_("Total Amount")}</td></tr>
-            <tr><td></td><td></td><td></td><td>${amount}</td></tr>
+            <tr><td></td><td></td><td></td><td>${"{0:0.2f}".format(amount)}</td></tr>
 
             </tbody>
         </table>