diff --git a/client/js/controllers/home_controller.js b/client/js/controllers/home_controller.js
index ea2a411c..528ce622 100644
--- a/client/js/controllers/home_controller.js
+++ b/client/js/controllers/home_controller.js
@@ -17,7 +17,7 @@ class HomeController {
             buildDate: config.meta.buildDate,
             canListSnapshots: api.hasPrivilege("snapshots:list"),
             canListPosts: api.hasPrivilege("posts:list"),
-            isDevelopmentMode: config.environment == "development"
+            isDevelopmentMode: config.environment == "development",
         });
 
         Info.get().then(
diff --git a/client/js/controls/tag_input_control.js b/client/js/controls/tag_input_control.js
index a383d449..cca58d5b 100644
--- a/client/js/controls/tag_input_control.js
+++ b/client/js/controls/tag_input_control.js
@@ -196,11 +196,9 @@ class TagInputControl extends events.EventTarget {
                 const listItemNode = this._createListItemNode(tag);
                 if (!tag.category) {
                     listItemNode.classList.add("new");
-                }
-                else if (source === SOURCE_IMPLICATION) {
+                } else if (source === SOURCE_IMPLICATION) {
                     listItemNode.classList.add("implication");
-                }
-                else {
+                } else {
                     listItemNode.classList.add("added");
                 }
                 this._tagListNode.prependChild(listItemNode);
diff --git a/client/js/main.js b/client/js/main.js
index 2be2cd53..c5bdc537 100644
--- a/client/js/main.js
+++ b/client/js/main.js
@@ -4,12 +4,12 @@ const config = require("./config.js");
 
 if (config.environment == "development") {
     var ws = new WebSocket("ws://" + location.hostname + ":8080");
-    ws.addEventListener('open', function (event) {
+    ws.addEventListener("open", function (event) {
         console.log("Live-reloading websocket connected.");
     });
-    ws.addEventListener('message', (event) => {
+    ws.addEventListener("message", (event) => {
         console.log(event);
-        if (event.data == 'reload'){
+        if (event.data == "reload") {
             location.reload();
         }
     });
diff --git a/server/szurubooru/func/image_hash.py b/server/szurubooru/func/image_hash.py
index a445e62d..05b27a42 100644
--- a/server/szurubooru/func/image_hash.py
+++ b/server/szurubooru/func/image_hash.py
@@ -5,14 +5,15 @@ from io import BytesIO
 from typing import Any, Callable, List, Optional, Set, Tuple
 
 import numpy as np
-from PIL import Image
 import pillow_avif
 import pyheif
+from PIL import Image
 from pyheif_pillow_opener import register_heif_opener
-register_heif_opener()
 
 from szurubooru import config, errors
 
+register_heif_opener()
+
 logger = logging.getLogger(__name__)
 
 # Math based on paper from H. Chi Wong, Marshall Bern and David Goldberg
diff --git a/server/szurubooru/func/images.py b/server/szurubooru/func/images.py
index 101bba8c..de41222f 100644
--- a/server/szurubooru/func/images.py
+++ b/server/szurubooru/func/images.py
@@ -6,6 +6,7 @@ import shlex
 import subprocess
 from io import BytesIO
 from typing import List
+
 from PIL import Image as PILImage
 
 from szurubooru import errors
@@ -17,7 +18,7 @@ logger = logging.getLogger(__name__)
 def convert_heif_to_png(content: bytes) -> bytes:
     img = PILImage.open(BytesIO(content))
     img_byte_arr = BytesIO()
-    img.save(img_byte_arr, format='PNG')
+    img.save(img_byte_arr, format="PNG")
     return img_byte_arr.getvalue()
 
 
diff --git a/server/szurubooru/func/mime.py b/server/szurubooru/func/mime.py
index 93c096b1..3be43f77 100644
--- a/server/szurubooru/func/mime.py
+++ b/server/szurubooru/func/mime.py
@@ -88,6 +88,7 @@ def is_animated_gif(content: bytes) -> bool:
         and len(re.findall(pattern, content)) > 1
     )
 
+
 def is_heif(mime_type: str) -> bool:
     return mime_type.lower() in (
         "image/heif",