From 24f08fbbbacfb7d2bd1e020fcf2ea14900bdcc56 Mon Sep 17 00:00:00 2001
From: James O'Beirne <james.obeirne@pm.me>
Date: Mon, 20 Dec 2021 13:58:08 -0500
Subject: [PATCH] ensure ssh_args is passed as a list

---
 mitogen/ssh.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mitogen/ssh.py b/mitogen/ssh.py
index 656dc72ca..6e6e04f98 100644
--- a/mitogen/ssh.py
+++ b/mitogen/ssh.py
@@ -213,6 +213,8 @@ def __init__(self, hostname, username=None, ssh_path=None, port=None,
         if ssh_path:
             self.ssh_path = ssh_path
         if ssh_args:
+            if not isinstance(ssh_args, list):
+                raise ValueError('ssh_args expected to be a list')
             self.ssh_args = ssh_args
         if ssh_debug_level:
             self.ssh_debug_level = ssh_debug_level