Use the python * operator to unpack the list, like this:
item_summary_fields = [db.item.id, db.item.title, db.item.image_thumb,
db.item.currency, db.item.shipping_method, db.item.start_price,
db.item.drops, db.item.duration, db.item.price_change, db.item.created_on]
rows = db(db.item.id>0).select(*item_summary_fields)
In Python, if my_list is a list, *my_list unpacks the list. Similarly, if
my_dict is a dict, **my_dict unpacks it.
so, if we want to use orderby or groupby, we can use the dict unpacking like
this:
kw ={'orderby':'db.item.title'}
rows = db().select(*item_summary_fields,**kw)
