Index: src/django_gheat/gheat/management/commands/import_datafile.py
===================================================================
--- src/django_gheat/gheat/management/commands/import_datafile.py	(revision 9629)
+++ src/django_gheat/gheat/management/commands/import_datafile.py	(revision 9631)
@@ -69,5 +69,5 @@
     except ValueError: pass
   # Start nagging we cannot parse the entries
-  raise CommandError("Invalid date '%s', options: %s" % (datestr, strptime_options))
+  raise CommandError("Invalid date '%s', options: %s" % (datestr, strptime_choices))