First of all, I've been searching other google group theads and they help 
me doing all I wanted but now I'm stuck. 
I was looking for getting some hardware information from a computer using 3 
threads. This threads save the info in the Database. To do that i follow 
the instructions founded in this two forum threads:
 - 
https://groups.google.com/forum/?fromgroups#!searchin/web2py/db$20module/web2py/HbZh7Bbk5RI/sWn0rZaQDRgJ
 -  http://osdir.com/ml/web2py/2012-02/msg01692.html 

I tryed to pass the DB connection to the class using the __init__ and the 
other way, using the current.db method, but I'm getting the same error: 
    raise errorclass, errorvalue
    InterfaceError: (0, '')

Despite my query is very simple: row = db(db.device).select()

Are threads unable to use DB connection?

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