Fix regression when openssh config does not exist. Resolves #63

Author: Dan

pssh/ssh_client.py

@@ -94,8 +94,11 @@ def __init__(self, host,
         the SSH agent
         :type allow_agent: bool
         """
-        host, _user, _port, _pkey = read_openssh_config(
-            host, config_file=_openssh_config_file)
+        try:
+            host, _user, _port, _pkey = read_openssh_config(
+                host, config_file=_openssh_config_file)
+        except TypeError:
+            host, _user, _port, _pkey = host, None, 22, None
         user = user if user else _user
         client = paramiko.SSHClient()
         client.set_missing_host_key_policy(paramiko.MissingHostKeyPolicy())

tests/test_ssh_client.py

@@ -327,5 +327,9 @@ def test_openssh_config(self):
         self.assertTrue(client.pkey)
         del _server, _listen_socket
 
+    def test_openssh_config_missing(self):
+        client = SSHClient(self.host, _openssh_config_file='fake', num_retries=1)
+        self.assertTrue(client)
+
 if __name__ == '__main__':
     unittest.main()