Python ゲッター、セッターなどサンプル

方法1

# -*- coding:utf-8 -*-

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

    def getx(self):
        print "getx."
        return self._x

    def setx(self, value):
        print "setx."
        self._x = value

    def delx(self):
        print "delx."
        del self._x

    x = property(getx, setx, delx)

if __name__ == "__main__":
    test = Test()

    test.x = 1
    test.x
    del test.x

実行結果

setx.
getx.
delx.

---

方法2

# -*- coding:utf-8 -*-

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

    @property
    def x(self):
        print "property x."
        return self._x

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

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

if __name__ == "__main__":
    test = Test()

    test.x = 1
    test.x
    del test.x

実行結果

setter x.
property x.
deleter x.