Method set_long_only

zipline/algorithm.py:2227–2231

Set a rule specifying that this algorithm cannot take short positions.

(self, on_error='fail')

    @api_method
    def set_long_only(self, on_error='fail'):
        """Set a rule specifying that this algorithm cannot take short
        positions.
        """
        self.register_trading_control(LongOnly(on_error))

    ##############
    # Pipeline API