Updated based on comments

boto3/ec2/deletetags.py

@@ -13,7 +13,7 @@
 from boto3.resources.action import CustomModeledAction
 
 
-def create_delete_tags_action(event_emitter):
+def inject_delete_tags(event_emitter, **kwargs):
     action_model = {
         'request': {
             'operation': 'DeleteTags',
@@ -24,7 +24,9 @@ def create_delete_tags_action(event_emitter):
             }]
         }
     }
-    return CustomModeledAction('delete_tags', action_model, delete_tags, event_emitter)
+    action = CustomModeledAction(
+        'delete_tags', action_model, delete_tags, event_emitter)
+    action.inject(**kwargs)
 
 
 def delete_tags(self, **kwargs):

boto3/resources/action.py

@@ -228,8 +228,8 @@ def __init__(self, action_name, action_model,
         self.function = function
         self.emitter = event_emitter
 
-    def inject(self, class_attributes, service_context,
-               resource_name, **kwargs):
+    def inject(self, class_attributes, service_context, event_name, **kwargs):
+        resource_name = event_name.rsplit(".")[-1]
         action = Action(self.name, self.model, {})
         self.function.__name__ = self.name
         self.function.__doc__ = ActionDocstring(

boto3/resources/factory.py

@@ -136,7 +136,7 @@ def load_from_definition(self, resource_name,
             self._emitter.emit(
                 'creating-resource-class.%s' % cls_name,
                 class_attributes=attrs, base_classes=base_classes,
-                service_context=service_context, resource_name=resource_name)
+                service_context=service_context)
         return type(str(cls_name), tuple(base_classes), attrs)
 
     def _load_identifiers(self, attrs, meta, resource_model, resource_name):

boto3/session.py

@@ -19,7 +19,6 @@
 
 import boto3
 import boto3.utils
-from boto3.ec2.deletetags import create_delete_tags_action
 
 from .resources.factory import ResourceFactory
 
@@ -352,6 +351,8 @@ def _register_default_handlers(self):
             boto3.utils.lazy_call(
                 'boto3.ec2.createtags.inject_create_tags'))
 
-        delete_tags = create_delete_tags_action(self.events)
         self._session.register(
-            'creating-resource-class.ec2.Instance', delete_tags.inject)
+            'creating-resource-class.ec2.Instance',
+            boto3.utils.lazy_call(
+                'boto3.ec2.deletetags.inject_delete_tags',
+                event_emitter=self.events))

boto3/utils.py

@@ -53,11 +53,15 @@ def import_module(name):
     return sys.modules[name]
 
 
-def lazy_call(full_name):
+def lazy_call(full_name, **kwargs):
+    parent_kwargs = kwargs
+
     def _handler(**kwargs):
         module, function_name = full_name.rsplit('.', 1)
         module = import_module(module)
+        kwargs.update(parent_kwargs)
         return getattr(module, function_name)(**kwargs)
+
     return _handler