human
Solve the following python programming problem given the following code:
def _getBatchOutput(self, f) : 
    fn = self.mktemp () 
    open (fn, 'w').write (f) 
    port = self.server.getHost ().port 
    cmds = ('-p %i -l testuser --known-hosts kh_test --user-authentications publickey --host-key-algorithms ssh-rsa -i dsa_test -a -v -b %s 127.0.0.1' % (self, fn)) 
    cmds = test_conch._makeArgs (cmds.split (), mod = 'cftp') [1 :] 
    log.msg (('running %s %s' % (sys.executable, cmds))) 
    env = os.environ.copy () 
    env ['PYTHONPATH'] = os.pathsep.join (sys.path) 
    self.server.factory.expectedLoseConnection = 1 
    d = getProcessOutputAndValue (sys.executable, cmds, env = env) 
    def _cleanup(res) : 
        os.remove (fn) 
        return res 
d.addCallback ((lambda res : res [0])) 
    d.addBoth (_cleanup) 
    return d 

    
    

    Fix the buggy line: cmds = ('-p %i -l testuser --known-hosts kh_test --user-authentications publickey --host-key-algorithms ssh-rsa -i dsa_test -a -v -b %s 127.0.0.1' % (self, fn))
assistant
#Here is Python program to fix the buggy line: cmds = ('-p %i -l testuser --known-hosts kh_test --user-authentications publickey --host-key-algorithms ssh-rsa -i dsa_test -a -v -b %s 127.

cmds = ('-p %i -l testuser --known-hosts kh_test --user-authentications publickey --host-key-algorithms ssh-rsa -i dsa_test -a -v -b %s 127.0.0.1' % (port, fn))