Style guide cleanup

backend/app/web/webapp.py

@@ -1,9 +1,10 @@
 from flask import (
-    Blueprint, render_template, request, url_for, current_app
+    Blueprint, render_template, url_for, current_app
 )
 
 bp = Blueprint('webapp', __name__, template_folder='templates')
 
+
 @bp.route('/')
 def index():
     url_base = current_app.config["CXG_API_BASE"]
@@ -16,6 +17,7 @@ def index():
 def swag():
     return render_template("swagger.html")
 
+
 # renders swagger documentation
 @bp.route('/favicon.png')
 def favicon():