PyPtxt.py 文件源码

def __isub__(self, other):
        if not isinstance(other, (PyPtxt, int)):
            raise TypeError("PyPtxt '-=' error: lhs must be of type PyPtxt or int instead of type " + str(type(other)))
        from operator import sub, mod
        if isinstance(other, PyPtxt):
            self = PyPtxt([mod(elt, self.__pyfhel.getModulus())
                           for elt in
                           list(map(sub, self.getPtxt(), other.getPtxt()))],
                          self.getPyfhel())
        else:
            constPtxt = [other for _ in range(self.__length)]

            self = PyPtxt([mod(elt, self.__pyfhel.getModulus())
                           for elt in
                           list(map(sub, self.getPtxt(), constPtxt))],
                          self.getPyfhel())
            del constPtxt
        return self



    # MULTIPLY:
    # '*' operator