def nonKeyVisibleCols(self):
        'All columns which are not keysList of unhidden non-key columns.'
        return [c for c in self.columns if not c.hidden and c not in self.keyCols]
def nonKeyVisibleCols ( self ) : return [ c for c in self . columns if not c . hidden and c not in self . keyCols ]
All columns which are not keysList of unhidden non-key columns.