Error conectando Mysql Workbench: AttributeError(«‘Transport’ object has no attribute ‘window_size'»,)

-Error conectando Mysql Workbench: AttributeError(«‘Transport’ object has no attribute ‘window_size'»,):

Si al intentar conectar a través de un túnel SSH da el siguiente error:

    Tunnel error: Remote connection to 127.0.0.1:3306 failed:
    AttributeError("'Transport' object has no attribute 'window_size'",)

Y con el «Test connection» dice lo siguiente:

    Failed to Connect to MySQL at 127.0.0.1:3306 through SSH tunnel...
    Lost connection to MySQL server at 'reading initial communication packet', system error: 0

Entonces la solución en Fedora (20) es :

"sudo yum downgrade python-paramiko"

Removed:
  python-paramiko.noarch 0:1.15.1-1.fc20                                                                 

Installed:
  python-paramiko.noarch
0:1.10.1-2.fc20