You can use the csv and cStringIO modules to generate the "file" and then 
just set the appropriate content type and disposition headers before you 
return the contents and the user's browser will download the generated 
file.  Take a look at this post for more details: 
https://groups.google.com/d/msg/web2py/4QhEULmJ8YE/aNBcJv81RocJ 


On Friday, May 3, 2013 8:59:54 AM UTC-5, Lamps902 wrote:
>
> I would like to permit users to be able to download a text file of some 
> data that's pulled up from certain fields of a DB table. This text file 
> should be generated when the user clicks on a certain link, and should not 
> be stored on the server's HD. Any ideas as to how to go about doing this? 
> Thanks!
>

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