@property
    def is_left_unbounded(self):
        return self.left is S.NegativeInfinity or self.left == Float("-inf")
a ** b
dataset/ETHPy150Open sympy/sympy/sympy/sets/sets.py/Interval.is_left_unbounded--crossover with--dataset/ETHPy150Open deanhiller/databus/webapp/play1.3.x/python/Lib/fractions.py/Fraction.__pow__