style fixes

Backend/backend.py

@@ -43,12 +43,13 @@ def generate_image():
 
     return r.json()
 
-#gets a random image from the database
+
+# gets a random image from the database
 @app.route("/get_random_image", methods=["GET"])
 def get_random_image():
     try:
         # Randomly select an image
-        image = Image.objects.aggregate([{'$sample': {'size': 1}}]).next()
+        image = Image.objects.aggregate([{"$sample": {"size": 1}}]).next()
         return jsonify(image), 200
     except StopIteration:
         # No images found in the database
@@ -57,6 +58,7 @@ def get_random_image():
         # Handle other exceptions
         return jsonify({"error": str(e)}), 500
 
+
 @app.route("/update_image_elo", methods=["POST"])
 def update_image_elo():
     data = request.get_json()
@@ -76,7 +78,6 @@ def update_image_elo():
         return jsonify({"error": str(e)}), 500
 
 
-
 @app.route("/store_image", methods=["POST"])
 def store_image():
     data = request.get_json()

Backend/db_access.py

@@ -1,3 +1,4 @@
+import os
 from flask import Flask, jsonify, request
 from mongoengine import (
     connect,
@@ -7,8 +8,6 @@
     ReferenceField,
     NotUniqueError,
 )
-import json
-
 from werkzeug.security import check_password_hash
 import secrets
 from mongoengine.errors import DoesNotExist
@@ -17,8 +16,6 @@
 
 load_dotenv()
 
-import os
-
 app = Flask(__name__)