pythonhook函数_python2中的类方法hookdecorator

多亏了&＃64;martijn pieters&＃xff0c;我像这样重写了它(在python2.7中工作得很好)&＃xff1a;def _add_hook_for(cls, target):

def hook_decorator(hook):

def hooked(s, *p, **k):

ret &＃61; target(s, *p, **k)

# some magic happens here

print(hook(s, target.__name__, *p, **k))

return ret

setattr(cls, target.__name__, hooked)

return hook

return hook_decorator

def reporting_list_deco(cls):

&＃64;_add_hook_for(cls, cls.append)

&＃64;_add_hook_for(cls, cls.extend)

&＃64;_add_hook_for(cls, cls.sort)

&＃64;_add_hook_for(cls, cls.reverse)

def no_idx_info(s, op, *p, **k):

return &＃39;%s %s&＃39; % (op, s._name)

&＃64;_add_hook_for(cls, cls.__setitem__)

&＃64;_add_hook_for(cls, cls.insert)

&＃64;_add_hook_for(cls, cls.__delitem__)

&＃64;_add_hook_for(cls, cls.remove)

&＃64;_add_hook_for(cls, cls.pop)

def idx_info(s, op, idx&＃61;&＃39;&＃39;, *p, **k):

return &＃39;%s %s[%s]&＃39; % (op, s._name, idx)

return cls

def test_reporting_list():

&＃64;reporting_list_deco

class reporting_list(list):

def __init__(self, name, *p, **k):

super(reporting_list, self).__init__(*p, **k)

self._name &＃61; name

rl &＃61; reporting_list(&＃39;foo&＃39;, [61,62,63])

rl[1] &＃61; 1

rl.append(7)

rl.remove(1)

rl.extend([5,6,7])

rl.pop()

rl.pop(2)

rl.sort()

del rl[0]

rl.reverse()

print(rl)

输出&＃xff1a;

^{pr2}$

它也可以应用于口述。谢谢你马蒂金&＃xff01;在