decorator

test.py

class zjw():
    def __init__(self):
        self.name = 1

    @classmethod
    def classmethod(cls, arg):
        print dir(cls)
        print cls
        print dir(arg)
        print arg

    def cbb(self, a):
        print a


# fuck = zjw()
# # zjw.classmethod(fuck, 1)
# fuck.classmethod(10)
#
# zjw.cbb(fuck, 190)






import time
from functools import wraps


def log(func):
    @wraps(func)
    def wrapper():
        print "funciton is running"
        # print func.__name__
        ts = time.time()
        result = func()
        te = time.time()
        print "function = {}\n return = {}\n tiem = {:.10f}".\
            format(func.__name__, result, te - ts)
    return wrapper


@log
def sum_non_para_non_para():
    x = 1231241412
    y = 12309317498
    return x * y


# sum_non_para_non_para()
# print sum_non_para_non_para.__name__






def log2(name):
    def decora(func):
        @wraps(func)
        def wrapper():
            print "name : %s" % name
            print "function is running"
            ts = time.time()
            result = func()
            te = time.time()
            print "function = {}\n return = {}\n tiem = {:.10f}".\
                format(func.__name__, result, te - ts)
        return wrapper
    return decora



@log2("zhangjiawei")
def sum_non_para_para():
    x = 1231241412
    y = 12309317498
    return x * y


# sum_non_para_para()

def log3(name):
    def decora(func):
        @wraps(func)
        def wrapper(*key):
            # print "name : ", name
            # print "funciton is running"
            ts = time.time()
            result = func(*key)
            te = time.time()
            print "function = {}\n return = {}\n tiem = {:.10f}".\
                format(func.__name__, result, te - ts)
        return wrapper
    return decora


@log3("chenbeibei")
def sum_para_para(a, b):
    return a + b


# sum_para_para(10101, 12312)
def div(cla):
    def decara(func):
        @wraps(func)
        def wrapper(*arg, **kwargs):
            return "<div class= %s > %s </div>" % (cla, func())
        return wrapper
    return decara


def h1(cla):
    def decara(func):
        @wraps(func)
        def wrapper(*arg, **kwargs):
            return "<h1 class= %s > %s </h1>" % (cla, func())
        return wrapper
    return decara


@div("divclass")
@h1("h1class")
def hello():
    return "hello world"


# print hello()


class myapp():
    def __init__(self):
        self.func_map = {}

    def register(self, name):
        def func_wapper(func):
            self.func_map[name] = func
            return func
        return func_wapper

    def call_method(self, name=None):
        func = self.func_map.get(name, None)
        if func is None:
            raise Exception("No function registered against - ") + str(name)
        return func()


app = myapp()


@app.register("/")
def main_page_func():
    return "This is the main page."


@app.register("/next_page")
def next_page_func():
    return "This is the next page."


print app.call_method("/")
print app.call_method("/next_page")