hi anthony,

sorry, i'm not sure what do you mean 'the view is expecting a particular 
variable to be returned but that variable is not in locals()'

here is the code that return an error:

    for k, v in session.order.items():
        if v==0:
            del session.order[k]
*            redirect(URL('order')) # if use return locals() an error will 
occur*

the logic is : it just checked if somebody made an order value is 0 (zero), 
they won't get into the bill page. when i use redirect to the order page, 
it's work fine, what i've expected, but when i try to learn to use return 
locals() an error rise. 

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