ASGI template MyPy fixes (piccolo-orm#224)

* add __init__.py file to asgi template

* fix mypy warning with `create_pydantic_model`

Author: dantownsend

piccolo/apps/asgi/commands/new.py

@@ -75,7 +75,7 @@ def new(root: str = ".", name: str = "piccolo_project"):
                 os.mkdir(sub_dir_path)
 
         for file_name in file_names:
-            if file_name.startswith("_"):
+            if file_name.startswith("_") and file_name != "__init__.py.jinja":
                 continue
 
             extension = file_name.rsplit(".")[0]

piccolo/apps/asgi/commands/templates/app/_blacksheep_app.py.jinja

@@ -11,7 +11,7 @@ from blacksheep.server.openapi.v3 import OpenAPIHandler
 from openapidocs.v3 import Info
 
 from home.endpoints import home
-from home.piccolo_app import APP_CONFIG 
+from home.piccolo_app import APP_CONFIG
 from home.tables import Task
 
 
@@ -36,11 +36,11 @@ app.serve_files("static", root_path="/static")
 app.router.add_get("/", home)
 
 
-TaskModelIn = create_pydantic_model(table=Task, model_name="TaskModelIn")
-TaskModelOut = create_pydantic_model(
+TaskModelIn: t.Any = create_pydantic_model(table=Task, model_name="TaskModelIn")
+TaskModelOut: t.Any = create_pydantic_model(
     table=Task, include_default_columns=True, model_name="TaskModelOut"
 )
-TaskModelPartial = create_pydantic_model(
+TaskModelPartial: t.Any = create_pydantic_model(
     table=Task, model_name="TaskModelPartial", all_optional=True
 )
 

piccolo/apps/asgi/commands/templates/app/_fastapi_app.py.jinja

@@ -29,8 +29,11 @@ app = FastAPI(
 )
 
 
-TaskModelIn = create_pydantic_model(table=Task, model_name='TaskModelIn')
-TaskModelOut = create_pydantic_model(
+TaskModelIn: t.Any = create_pydantic_model(
+    table=Task,
+    model_name='TaskModelIn'
+)
+TaskModelOut: t.Any = create_pydantic_model(
     table=Task,
     include_default_columns=True,
     model_name='TaskModelOut'