[web2py] 'Auth' object has no attribute 'signature'

[Tito Garrido]

I've installed plugin wiki and got this running my app, any clue?

web2py™ Version 1.91.6 (2011-01-03 17:55:14)  Python Python 2.5.4:
/usr/local/bin/python



Traceback (most recent call last):
  File "/home/titogarrido/webapps/web2py/web2py/gluon/restricted.py",
line 188, in restricted

    exec ccode in environment
  File 
"/home/titogarrido/webapps/web2py/web2py/applications/secmon/models/plugin_wiki.py"
<https://admin.gametraders.com.br/admin/default/edit/secmon/models/plugin_wiki.py>,
line 62, in <module>

    auth.signature,
AttributeError: 'Auth' object has no attribute 'signature'