Python2.7 contextlib.ExitStack等效项 [英] Python2.7 contextlib.ExitStack equivalent

问题描述

要以编程方式组合上下文管理器，我使用以下代码:

To programmatically combine context managers I use the following code:

== helpers.py ==

== helpers.py ==

from contextlib import nested
import mock

def multiple_patch(obj_to_be_patch, *methods):
    return nested(
        *[mock.patch.object(obj_to_be_patch, method) for method in methods]
    )

== tests.py ==

== tests.py ==

def test_foo(self):
    with helpers.multiple_patch(Foo, "method1", "method2", "method3",    "method3") as mocks:
         mock_method1 = mocks[0]
         ....
         # asserts on mocks

因为我被这个版本的python卡住了，所以我不能使用contextlib.ExitStack和contextlib.nested已被弃用.

Because I'm stuck with this version of python I can't use contextlib.ExitStack and contextlib.nested is deprecated.

谢谢

推荐答案

查看> c0> ，Python3的contextlib.ExitStack的反向端口.

Check out contextlib2.ExitStack, a backport of Python3's contextlib.ExitStack.

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