def widthShortfall(self):

        return self.growToWidth - self.endPosn[1]

    # -------------------------------------------------------------------------
Construct a Boolean.
dataset/ETHPy150Open sahana/eden/modules/s3db/survey.py/survey_LayoutBlocks.widthShortfall--crossover with--dataset/ETHPy150Open zzzeek/sqlalchemy/lib/sqlalchemy/sql/sqltypes.py/Boolean.__init__