小编Nic*_*Guy的帖子

为了理解*args和**kwargs我做了一些搜索,当我遇到这个问题时*args和**kwargs？

所选答案下面的答案引起了我的注意,这是:

class Foo(object):
    def __init__(self, value1, value2):
    # do something with the values
        print value1, value2

class MyFoo(Foo):
    def __init__(self, *args, **kwargs):
    # do something else, don't care about the args
        print 'myfoo'
        super(MyFoo, self).__init__(*args, **kwargs)

我在这个例子上尝试了一些东西并以这种方式运行代码:

class Foo(object):
    def __init__(self, value1, value2):
    # do something with the values
        print 'I think something is being called here'
        print value1, value2


class MyFoo(Foo):
    def __init__(self, *args, **kwargs):
    # do something else, don't care about the args
        print args, kwargs …

例如:

import mock

class MyClass(object):
    def foo(self, x, y, z):
        return (x, y, z)


class TestMyClass(TestCase)
    @mock.patch('MyClass')
    def TestMyClass(self, MyClassMock):
        foo_mock = MyClassMock.foo()

        self.assertEquals((x, y, z), foo_mock)

所以,真正的问题是:如何获得返回的测试内容得到这个<MagicMock name='MyClass.foo()' id='191728464'>或如何处理这个MagicMock对象来获得该测试的返回,该测试应该是一个包含3个元素的元组,而不是更多或更少？

任何建议,任何想法,任何论点都将受到欢迎.提前致谢!

为什么当我尝试这样做时:

#include <stdio.h>

int main()
{

    printf("Size of int: %d bytes\n",sizeof(int));

    return 0;
}

我懂了:

warning: format "%d" expects argmuments of int type, but the second argument is of type "long unsigned int..."

(？)

如果它重要,我的操作系统是64位12.4版的Ubuntu.编译器是:GNU GCC编译器,IDE是Code :: Blocks.

为了好奇,我在另一台机器运行相同的代码,运行一个可怜的Win7,结构也是64位,我得到的结果是int的大小,而不是像上面的警告.

在python 2.7下.

如何处理那些只传递一个论点的方法,即"自我"？

class MyTwitterClass(object):
    ...
    def keys(self):
        return {
            'consumer_key': self.read_settings().get('Keys', 'consumer_key'),
            "consumer_secret": self.read_settings().get('Keys', 'consumer_secret'),
            "access_token_key": self.read_settings().get('Keys', 'access_token_key'),
            "access_token_secret": self.read_settings().get('Keys', 'access_token_secret')
        }

    api = twitter.Api(consumer_key=keys()['consumer_key'],
                      consumer_secret=keys()['consumer_secret'],
                      access_token_key=keys()['access_token_key'],
                      access_token_secret=keys()['access_token_secret'])

我得到的错误是:

Traceback (most recent call):
    File "..." ...
    ...
     api = twitter.Api(consumer_key=keys()['consumer_key'],
    TypeError: keys() takes exactly 1 argument (0 given)

任何想法都会受到欢迎.