ops.py 文件源码

def _eval(self):
        arr = [op() for op in self.operands]

        for i, val in enumerate(arr):
            if isinstance(val, numbers.Number):
                shp = [l for let in Einsum.split_dots(self.opnames[i]) for l in self.letter_to_dim.get(let, [1])]
                arr[i] = np.broadcast_to(val, shp)

        return np.einsum(self.op_str, *arr)