From d7faaff57a7a9c0029a31f09564d30ab35007907 Mon Sep 17 00:00:00 2001
From: Marcel <62351477+lezram@users.noreply.github.com>
Date: Wed, 11 Oct 2023 00:37:14 +0200
Subject: [PATCH] fix: allow host tuple (#1021)

---
 asyncpg/connect_utils.py |  2 +-
 tests/test_connect.py    | 13 +++++++++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/asyncpg/connect_utils.py b/asyncpg/connect_utils.py
index 760e1297..414231fd 100644
--- a/asyncpg/connect_utils.py
+++ b/asyncpg/connect_utils.py
@@ -403,7 +403,7 @@ def _parse_connect_dsn_and_args(*, dsn, host, port, user,
             host = ['/run/postgresql', '/var/run/postgresql',
                     '/tmp', '/private/tmp', 'localhost']
 
-    if not isinstance(host, list):
+    if not isinstance(host, (list, tuple)):
         host = [host]
 
     if auth_hosts is None:
diff --git a/tests/test_connect.py b/tests/test_connect.py
index 1af074f1..5333e2c5 100644
--- a/tests/test_connect.py
+++ b/tests/test_connect.py
@@ -671,6 +671,19 @@ class TestConnectParams(tb.TestCase):
                 'target_session_attrs': 'any',
             })
         },
+        {
+            'name': 'params_multi_host_dsn_env_mix_tuple',
+            'env': {
+                'PGUSER': 'foo',
+            },
+            'dsn': 'postgresql:///db',
+            'host': ('host1', 'host2'),
+            'result': ([('host1', 5432), ('host2', 5432)], {
+                'database': 'db',
+                'user': 'foo',
+                'target_session_attrs': 'any',
+            })
+        },
 
         {
             'name': 'params_combine_dsn_settings_override_and_ssl',