Fix issues caught by linter.

1 files changed, 9 insertions, 2 deletions

diff --git a/uploader/__init__.py b/uploader/__init__.py
index b986c81..97b9af5 100644
--- a/uploader/__init__.py
+++ b/uploader/__init__.py
@@ -3,13 +3,17 @@ import os
 import sys
 import logging
 from pathlib import Path
+from typing import Optional
 
 from flask import Flask, request
-from flask_session import Session
+
 from cachelib import FileSystemCache
 
 from gn_libs import jobs as gnlibs_jobs
 
+from flask_session import Session
+
+
 from uploader.oauth2.client import user_logged_in, authserver_authorise_uri
 
 from . import session
@@ -66,12 +70,15 @@ def setup_modules_logging(app_logger):
     logging.getLogger("uploader.publications.models").setLevel(loglevel)
 
 
-def create_app(config: dict = {}):
+def create_app(config: Optional[dict] = None):
     """The application factory.
 
     config: dict
       Useful to override settings in the settings files and environment
       especially in environments such as testing."""
+    if config is None:
+        config = {}
+
     app = Flask(__name__)
 
     ### BEGIN: Application configuration