sort imports using isort. tested.

core/utils.py

@@ -1,27 +1,26 @@
-import string
-import os
 import datetime
+import logging
+import os
+import random
 import re
 import resource
-import random
-import logging
+import string
 import subprocess
-from pathlib import Path
-
-from urllib.parse import urljoin
 from decimal import Decimal, getcontext
+from pathlib import Path
+from urllib.parse import urljoin
+
 getcontext().prec=2 #use 2 significant figures for decimal calculations
 
-import settings
-
-from django.db import models
+from django.conf import settings
 from django.contrib import admin
 from django.contrib.auth.models import User
 from django.contrib.contenttypes.models import ContentType
-from django.conf import settings
-
-from django.urls import reverse
+from django.db import models
 from django.template import Context, loader
+from django.urls import reverse
+
+import settings
 
 '''This file declares TROG a globally visible object for caches.