无法取消弃用警告 [英] Unable to suppress deprecation warnings

问题描述

在我的Django应用程序中，当我导入一个第三方库时，在控制台中收到以下警告：

In my Django application, when I import one third party library, I get this warning in the console:

imp模块是不推荐使用importlib；请参阅该模块的文档以供其他用途

the imp module is deprecated in favour of importlib; see the module's documentation for alternative uses

但是，如果我在Python shell中进行导入，则一切正常。我想在Django中实现相同的行为。这是我根据其他操作系统线程中的答案所尝试的：

If however I do the import inside Python shell, then everything is ok. I want to achive the same behaviour in Django. This is what I've tried based on answers in other OS threads:

import warnings
from django.utils.deprecation import RemovedInDjango110Warning
warnings.filterwarnings(action="ignore", category=RemovedInDjango110Warning)

上面的代码导致另一个错误消息，指出RemovedInDjango110Warning不存在。我也尝试过这样：

The above code results in another error message, that says that RemovedInDjango110Warning does not exists. I also tried this:

import warnings

def fxn():
    warnings.warn("deprecated", DeprecationWarning)

with warnings.catch_warnings():
    warnings.simplefilter("ignore")
    fxn()

from third_party_lib import some_module

但是我仍然得到非常相同的错误消息。因此，似乎以前所有对此问题的答案都已过时。我们需要一些新的解决方法。谢谢！

But still I get the very same error message. So, it seems like all previous answers to this problem got outdated. And we need some fresh fix. Thanks!

我也尝试过：

import warnings

with warnings.catch_warnings():
    warnings.filterwarnings("ignore",category=DeprecationWarning)
    from third_party_lib import some_module

但是没有效果。

推荐答案

有一个您尝试过的代码有几个问题。如果要过滤 PendingDeprecationWarning ，则应在代码中使用 PendingDeprecationWarning 。您的代码使用的是 DeprecationWarning 和 RemovedInDjango110Warning ，它们是不同的警告。其次，文档中的 fxn（）函数是一个创建警告的示例函数。

There are a couple of issues with the code you've tried. If you want to filter PendingDeprecationWarning, then you should use PendingDeprecationWarning in your code. Your code is using DeprecationWarning and RemovedInDjango110Warning, which are different warnings. Secondly, the fxn() function in the docs is an example function that creates a warning. It doesn't make sense to include it in your code.

您可以过滤所有未决的弃用警告

You can either filter all pending deprecation warnings

import warnings
warnings.simplefilter("ignore", category=PendingDeprecationWarning)

但是，这可能会在您应该修复的代码中隐藏未决的弃用。更好的方法是使用上下文管理器，在导入第三方库时过滤掉警告。

However this might hide pending deprecations in your own code that you should fix. A better approach would be to use a context manager, to filter out warnings when importing the third-party lib.

with warnings.catch_warnings():
    warnings.simplefilter("ignore", category=PendingDeprecationWarning)
    from third_party_lib import some_module

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