update readme setup instructions and clean up imports

Signed-off-by: Greg Werner <[email protected]>

src/graderservice/README.md

@@ -8,7 +8,17 @@ Microservice used to setup new shared grader notebooks.
 
 Install in editable mode:
 
-    pip install -r requirements.txt
+    pip install -e .
+
+## Run Application
+
+Run application locally with debug mode enabled:
+
+```bash
+export FLASK_APP=src/graderservice/graderservice
+export FLASK_ENV=development
+flask run
+```
 
 ## Update Dependencies
 

src/graderservice/graderservice/routes.py

@@ -6,11 +6,12 @@
 
 from flask import Blueprint
 from flask import jsonify
-from graderservice.graderservice import NB_GID
-from graderservice.graderservice import NB_UID
-from graderservice.graderservice import GraderServiceLauncher
-from graderservice.models import GraderService
-from graderservice.models import db
+
+from .graderservice import NB_GID
+from .graderservice import NB_UID
+from .graderservice import GraderServiceLauncher
+from .models import GraderService
+from .models import db
 
 log_file_path = path.join(path.dirname(path.abspath(__file__)), "logging_config.ini")
 logging.config.fileConfig(log_file_path)