方法有什么问题？

  instance.set_password（'my_pw'）
 

您可以使用 @property 定义设置器：
http：//docs.python .org / library / functions.html＃property

  ###从文档中粘贴

 class C（object）：
 def __init __（self）：
 self._x =无

 @property 
 def x（self）：
我是'x'属性。
 return self._x 

 @ x.setter 
 def x（self，value）：
 self._x = value 

 @ x.deleter 
 def x（self）：
 del self._x 
 

Is there any way to do in django custom property setter like this?

class MyModel(models.Model):
    myfield = models.CharField(length = 250)

    @myfield.setter
    def set_password(self, value):
       self.password = encrypt(value)

What's wrong with a method?

instance.set_password('my_pw')

You can use @property to define setters: http://docs.python.org/library/functions.html#property

### Pasted from docs

class C(object):
    def __init__(self):
        self._x = None

    @property
    def x(self):
        """I'm the 'x' property."""
        return self._x

    @x.setter
    def x(self, value):
        self._x = value

    @x.deleter
    def x(self):
        del self._x