Improve code quality

app.py

@@ -9,7 +9,7 @@ import qgram
 
 app = Flask(__name__)
 
-with open("examples/titles.json") as fileobj:
+with open("examples/titles.json", encoding="utf-8") as fileobj:
     titles = json.load(fileobj)
 
 index = qgram.QGramIndex()
@@ -18,6 +18,7 @@ for title, _ in titles.values():
 
 @app.route("/")
 def suggest():
+    """Serve movie title suggestions"""
     query = request.args.get("q")
     if not query:
         return {}
@@ -26,4 +27,3 @@ def suggest():
     return {
         "suggestions": results[:100]
     }
-