adding ec2 stubs

moto/ec2/responses/spot_instances.py

@@ -0,0 +1,28 @@
+from jinja2 import Template
+
+from moto.ec2.models import ec2_backend
+from moto.ec2.utils import resource_ids_from_querystring
+
+
+class SpotInstances(object):
+    def cancel_spot_instance_requests(self):
+        return NotImplemented
+
+    def create_spot_datafeed_subscription(self):
+        return NotImplemented
+
+    def delete_spot_datafeed_subscription(self):
+        return NotImplemented
+
+    def describe_spot_datafeed_subscription(self):
+        return NotImplemented
+
+    def describe_spot_instance_requests(self):
+        return NotImplemented
+
+    def describe_spot_price_history(self):
+        return NotImplemented
+
+    def request_spot_instances(self):
+        return NotImplemented
+