ꦫꦣꦺꦤ꧀ꦄꦤ꧀ꦠꦱꦺꦤ

PATH: usr / lib64 / python2.7 / Demo / metaclasses

import types

class Tracing:
    def __init__(self, name, bases, namespace):
        """Create a new class."""
        self.__name__ = name
        self.__bases__ = bases
        self.__namespace__ = namespace
    def __call__(self):
        """Create a new instance."""
        return Instance(self)

class Instance:
    def __init__(self, klass):
        self.__klass__ = klass
    def __getattr__(self, name):
        try:
            value = self.__klass__.__namespace__[name]
        except KeyError:
            raise AttributeError, name
        if type(value) is not types.FunctionType:
            return value
        return BoundMethod(value, self)

class BoundMethod:
    def __init__(self, function, instance):
        self.function = function
        self.instance = instance
    def __call__(self, *args):
        print "calling", self.function, "for", self.instance, "with", args
        return apply(self.function, (self.instance,) + args)

Trace = Tracing('Trace', (), {})

class MyTracedClass(Trace):
    def method1(self, a):
        self.a = a
    def method2(self):
        return self.a

aninstance = MyTracedClass()

aninstance.method1(10)

print aninstance.method2()

[-] Trace.pyo [edit]
[-] Enum.pyo [edit]
[+] ..
[-] Trace.py [edit]
[-] Eiffel.py [edit]
[-] Trace.pyc [edit]
[-] meta-vladimir.txt [edit]
[-] index.html [edit]
[-] Synch.py [edit]
[-] Enum.py [edit]
[-] Meta.py [edit]
[-] Meta.pyc [edit]
[-] Simple.py [edit]
[-] Simple.pyo [edit]
[-] Eiffel.pyc [edit]
[-] Eiffel.pyo [edit]
[-] Synch.pyc [edit]
[-] Enum.pyc [edit]
[-] Simple.pyc [edit]
[-] Synch.pyo [edit]
[-] Meta.pyo [edit]