sort imports using isort. tested.

core/models/survex.py

@@ -1,14 +1,14 @@
-import os
-import re
+import datetime
 import json
 import operator
-import datetime
-from urllib.parse import urljoin
-from pathlib import Path
+import os
+import re
 from functools import reduce
+from pathlib import Path
+from urllib.parse import urljoin
 
-from django.db import models
 from django.conf import settings
+from django.db import models
 from django.urls import reverse
 
 # from troggle.core.models.troggle import DataIssue # circular import. Hmm
@@ -215,7 +215,8 @@ class Wallet(models.Model):
                                 waldata["date"] = thisdate.isoformat()
                             except:
                                 message = f"! {str(self.walletname)} Date formatting failure {thisdate}. Failed to load from {jsonfile} JSON file"
-                                from troggle.core.models.troggle import DataIssue
+                                from troggle.core.models.troggle import \
+                                    DataIssue
                                 DataIssue.objects.update_or_create(parser='scans', message=message, url=wurl) 
                         except:
                             message = f"! {str(self.walletname)} Date format not ISO {datestr}. Failed to load from {jsonfile} JSON file"