title: paramiko: NameError: global name 'descriptor' is not defined
body: <p>I'm trying to use <code>paramiko</code> for SSH, but got an error:</p>
  
  <pre><code>&gt;&gt;&gt; import paramiko
  &gt;&gt;&gt; ssh = paramiko.SSHClient()
  &gt;&gt;&gt; ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
  &gt;&gt;&gt; ssh.connect('54.***.***.110', key_filename='D:\Keys\MyOWN\priv.ppk')
  Traceback (most recent call last):
    File "&lt;stdin&gt;", line 1, in &lt;module&gt;
    File "build\bdist.win32\egg\paramiko\client.py", line 366, in connect
    File "build\bdist.win32\egg\paramiko\client.py", line 515, in _auth
    File "build\bdist.win32\egg\paramiko\agent.py", line 343, in __init__
    File "build\bdist.win32\egg\paramiko\agent.py", line 66, in _connect
    File "build\bdist.win32\egg\paramiko\agent.py", line 83, in _send_message
    File "build\bdist.win32\egg\paramiko\win_pageant.py", line 123, in send
    File "build\bdist.win32\egg\paramiko\win_pageant.py", line 89, in _query_pageant
    File "build\bdist.win32\egg\paramiko\_winapi.py", line 273, in get_security_attributes_for_user
    File "build\bdist.win32\egg\paramiko\_winapi.py", line 222, in descriptor
  NameError: global name 'descriptor' is not defined
  </code></pre>
  
  <p>Regarding <a href="https://github.com/paramiko/paramiko/issues/461" rel="nofollow">this issue</a> - it was solved, but - I still have this error (latest <code>paramiko</code> version, downloaded from it's Github).</p>
  
  <p>May be - there is some other libs, to wok via SSH with RSA-key authorization? 
  Or - any way to solve this <code>NameError</code>...</p>