[3.1.x] Bumped minimum isort version to 5.1.0.

Fixed inner imports per isort 5.
isort 5.0.0 to 5.1.0 was unstable.

Backport of e74b3d724e5ddfef96d1d66bd1c58e7aae26fc85 from master

1 files changed, 5 insertions, 2 deletions

diff --git a/tests/postgres_tests/test_array.py b/tests/postgres_tests/test_array.py
index ee66fbcd60..a3095ae9ff 100644
--- a/tests/postgres_tests/test_array.py
+++ b/tests/postgres_tests/test_array.py
@@ -25,14 +25,17 @@ from .models import (
 )
 
 try:
+    from psycopg2.extras import NumericRange
+
     from django.contrib.postgres.aggregates import ArrayAgg
     from django.contrib.postgres.fields import ArrayField
-    from django.contrib.postgres.fields.array import IndexTransform, SliceTransform
+    from django.contrib.postgres.fields.array import (
+        IndexTransform, SliceTransform,
+    )
     from django.contrib.postgres.forms import (
         SimpleArrayField, SplitArrayField, SplitArrayWidget,
     )
     from django.db.backends.postgresql.base import PSYCOPG2_VERSION
-    from psycopg2.extras import NumericRange
 except ImportError:
     pass