title: AttributeError: module 'ctypes.wintypes' has no attribute 'create_unicode_buffer'
body: <p>This is a part of my code:</p>
  
  <pre><code>import os
  
  def _get_appdata_path():
      import ctypes
      from ctypes import wintypes, windll
      CSIDL_APPDATA = 26
      _SHGetFolderPath = windll.shell32.SHGetFolderPathW
      _SHGetFolderPath.argtypes = [wintypes.HWND,
                                   ctypes.c_int,
                                   wintypes.HANDLE,
                                   wintypes.DWORD,
                                   wintypes.LPCWSTR]
      path_buf = wintypes.create_unicode_buffer(wintypes.MAX_PATH)
      result = _SHGetFolderPath(0, CSIDL_APPDATA, 0, 0, path_buf)
      return path_buf.value
  </code></pre>
  
  <p>But when I call <code>wintypes.create_unicode_buffer()</code> I get the error:</p>
  
  <pre><code>AttributeError: module 'ctypes.wintypes' has no attribute 'create_unicode_buffer'
  </code></pre>
  
  <p>I am using Python 3.5.1. What could I do?</p>