The SSL_fileobject class is accessible via the paste.script.wsgiserver module.
['mode', 'bufsize', 'softspace', '_sock', '_rbufsize', '_wbufsize', '_rbuf', '_wbuf', '_close']
<member 'bufsize' of '_fileobject' objects>
True if the file is closed
8192
<member 'mode' of '_fileobject' objects>
'<socket>'
<member 'softspace' of '_fileobject' objects>
0.01
3
See the source for more information.