Hello,

I'm writing a module to contain some class definitions I need for my 
application's business logic and I would like to access gluon from my 
module. 
I placed my module inside the modules directory and import it using 
local_import. I want to have the classes in the module access the database 
(which I managed by passing the db DAL instance to the classe's 
constructor), but I would like to be able to check that the expected DAL 
object is transferred during construction of the object. To that end I would 
like to write something like:

if isinstance(db, gluon.dal.DAL) 

or just 

if isinstance(db,DAL).

I have tried to import web2py in the usual way (import web2py) - and it 
raised an exception - TclError: image "pyimage2" doesn't exist.

and opened a white triangular window without any borders that will not go 
away unless I close the web2py application. It does the same when I try to 
import only web2py.gluon.dal.

I'm running on Ubuntu 10.10 with web2py version 1.94.6.

Thanks,
Omri

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