[web2py] global name DIV not defined

[Lars]

Hi,

I have this small code in the dashboard module:

from gluon.html import DIV
def get_dashboard():
    return DIV(
        DIV('Lorat ipsum etc', _class='dashboard alert'),
        _class='center-box').xml()

and this one in default.py :

def index():
    from modelling.dashboard import get_dashboard
    dashboard = get_dashboard()
    return dict(message=message, dashboard=dashboard



And I noticed that if I refresh the page to quickly sometimes I have the 
error :
global name DIV is not defined

or some other, the css is not defined ?

Could anybody figure why ? And how to avoid this ?

Thank you,

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