import paramiko

remote_machine_name = raw_input('Enter the remote machine name:')

ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
try:
    ssh.connect(remote_machine_name, username='xxx', password='yyy')
    print "connected successfully!"

except paramiko.SSHException:
    print "connection error"

stdin, stdout, stderr = ssh.exec_command('(cd path;./shellscript.sh)')

print "stderr: ", stderr.readlines()
print "stdout: ", stdout.readlines()