DT code to gauss

code snippet for conversion from dt to gauss

dt = self._dt_code
            gauss = []
            y = [None for i in range(2*len(dt))]
            x = [0 for i in range(2*len(dt))]
            for i in range(len(dt)):
                x[2*i] = 2*i + 1
                x[2*i + 1] = dt[i]
            for i in range(len(dt)):
                if x[2*i+1] > 0:
                    y[2*i+1] = 'under'
                    y[2*i] = 'over'
                elif x[2*i+1] < 0:
                    y[2*i+1] = 'over'
                    y[2*i] = 'under'
            for i in range(1,len(x)+1):
                for j in range(0,len(x)):
                    if abs(x[j]) == i:
                        if y[j] == 'under':
                            gauss.append(-(j//2 + 1))
                        elif y[j] == 'over':
                            gauss.append(j//2 + 1)
            return gauss