style: format code with black
diff --git a/erpnext/accounts/test_party.py b/erpnext/accounts/test_party.py
index f7a1a85..9d3de5e 100644
--- a/erpnext/accounts/test_party.py
+++ b/erpnext/accounts/test_party.py
@@ -6,10 +6,12 @@
 
 class PartyTestCase(FrappeTestCase):
 	def test_get_default_price_list_should_return_none_for_invalid_group(self):
-		customer = frappe.get_doc({
-			'doctype': 'Customer',
-			'customer_name': 'test customer',
-		}).insert(ignore_permissions=True, ignore_mandatory=True)
+		customer = frappe.get_doc(
+			{
+				"doctype": "Customer",
+				"customer_name": "test customer",
+			}
+		).insert(ignore_permissions=True, ignore_mandatory=True)
 		customer.customer_group = None
 		customer.save()
 		price_list = get_default_price_list(customer)