Fixed #27818 -- Replaced try/except/pass with contextlib.suppress().

tests/postgres_tests/test_hstore.py

@@ -1,4 +1,5 @@
 import json
+from contextlib import suppress
 
 from django.core import exceptions, serializers
 from django.forms import Form
@@ -7,12 +8,10 @@ from django.test.utils import modify_settings
 from . import PostgreSQLTestCase
 from .models import HStoreModel
 
-try:
+with suppress(ImportError):
     from django.contrib.postgres import forms
     from django.contrib.postgres.fields import HStoreField
     from django.contrib.postgres.validators import KeysValidator
-except ImportError:
-    pass
 
 
 @modify_settings(INSTALLED_APPS={'append': 'django.contrib.postgres'})