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如何在Python中忽略弃用警告

问题:如何在Python中忽略弃用警告

我不断得到这个:

DeprecationWarning: integer argument expected, got float

我如何使此消息消失?有没有一种方法可以避免Python中的警告?

I keep getting this :

DeprecationWarning: integer argument expected, got float

How do I make this message go away? Is there a way to avoid warnings in Python?


回答 0

warnings模块的文档中:

 #!/usr/bin/env python -W ignore::DeprecationWarning

如果您使用的是Windows,请-W ignore::DeprecationWarning作为参数传递给Python。最好通过强制转换为int来解决问题。

(请注意,在Python 3.2中,默认情况下会忽略弃用警告。)

From documentation of the warnings module:

 #!/usr/bin/env python -W ignore::DeprecationWarning

If you’re on Windows: pass -W ignore::DeprecationWarning as an argument to Python. Better though to resolve the issue, by casting to int.

(Note that in Python 3.2, deprecation warnings are ignored by default.)


回答 1

您应该只修复代码,以防万一,

import warnings
warnings.filterwarnings("ignore", category=DeprecationWarning) 

You should just fix your code but just in case,

import warnings
warnings.filterwarnings("ignore", category=DeprecationWarning) 

回答 2

我有这些:

/home/eddyp/virtualenv/lib/python2.6/site-packages/Twisted-8.2.0-py2.6-linux-x86_64.egg/twisted/persisted/sob.py:12:
DeprecationWarning: the md5 module is deprecated; use hashlib instead import os, md5, sys

/home/eddyp/virtualenv/lib/python2.6/site-packages/Twisted-8.2.0-py2.6-linux-x86_64.egg/twisted/python/filepath.py:12:
DeprecationWarning: the sha module is deprecated; use the hashlib module instead import sha

使用以下方法修复了该问题:

import warnings

with warnings.catch_warnings():
    warnings.filterwarnings("ignore",category=DeprecationWarning)
    import md5, sha

yourcode()

现在您仍然得到所有其他DeprecationWarnings,但不是由以下原因引起的:

import md5, sha

I had these:

/home/eddyp/virtualenv/lib/python2.6/site-packages/Twisted-8.2.0-py2.6-linux-x86_64.egg/twisted/persisted/sob.py:12:
DeprecationWarning: the md5 module is deprecated; use hashlib instead import os, md5, sys

/home/eddyp/virtualenv/lib/python2.6/site-packages/Twisted-8.2.0-py2.6-linux-x86_64.egg/twisted/python/filepath.py:12:
DeprecationWarning: the sha module is deprecated; use the hashlib module instead import sha

Fixed it with:

import warnings

with warnings.catch_warnings():
    warnings.filterwarnings("ignore",category=DeprecationWarning)
    import md5, sha

yourcode()

Now you still get all the other DeprecationWarnings, but not the ones caused by:

import md5, sha

回答 3

我发现最干净的方法(尤其是在Windows上)是通过将以下内容添加到C:\ Python26 \ Lib \ site-packages \ sitecustomize.py:

import warnings
warnings.filterwarnings("ignore", category=DeprecationWarning)

请注意,我必须创建此文件。当然,如果您的路径不同,请更改python的路径。

I found the cleanest way to do this (especially on windows) is by adding the following to C:\Python26\Lib\site-packages\sitecustomize.py:

import warnings
warnings.filterwarnings("ignore", category=DeprecationWarning)

Note that I had to create this file. Of course, change the path to python if yours is different.


回答 4

这些答案都不适合我,因此我将发布解决方法。我使用以下at the beginning of my main.py脚本,它运行正常。


照原样使用以下内容(复制粘贴):

def warn(*args, **kwargs):
    pass
import warnings
warnings.warn = warn

例:

import "blabla"
import "blabla"

def warn(*args, **kwargs):
    pass
import warnings
warnings.warn = warn

# more code here...
# more code here...

None of these answers worked for me so I will post my way to solve this. I use the following at the beginning of my main.py script and it works fine.


Use the following as it is (copy-paste it):

def warn(*args, **kwargs):
    pass
import warnings
warnings.warn = warn

Example:

import "blabla"
import "blabla"

def warn(*args, **kwargs):
    pass
import warnings
warnings.warn = warn

# more code here...
# more code here...


回答 5

通过正确的论点?:P

更严重的是,您可以在命令行上将参数-Wi :: DeprecationWarning传递给解释器,以忽略弃用警告。

Pass the correct arguments? :P

On the more serious note, you can pass the argument -Wi::DeprecationWarning on the command line to the interpreter to ignore the deprecation warnings.


回答 6

将参数转换为int。就这么简单

int(argument)

Convert the argument to int. It’s as simple as

int(argument)

回答 7

当您只想在功能中忽略警告时,可以执行以下操作。

import warnings
from functools import wraps


def ignore_warnings(f):
    @wraps(f)
    def inner(*args, **kwargs):
        with warnings.catch_warnings(record=True) as w:
            warnings.simplefilter("ignore")
            response = f(*args, **kwargs)
        return response
    return inner

@ignore_warnings
def foo(arg1, arg2):
    ...
    write your code here without warnings
    ...

@ignore_warnings
def foo2(arg1, arg2, arg3):
    ...
    write your code here without warnings
    ...

只需在要忽略所有警告的函数上添加@ignore_warnings装饰器

When you want to ignore warnings only in functions you can do the following.

import warnings
from functools import wraps


def ignore_warnings(f):
    @wraps(f)
    def inner(*args, **kwargs):
        with warnings.catch_warnings(record=True) as w:
            warnings.simplefilter("ignore")
            response = f(*args, **kwargs)
        return response
    return inner

@ignore_warnings
def foo(arg1, arg2):
    ...
    write your code here without warnings
    ...

@ignore_warnings
def foo2(arg1, arg2, arg3):
    ...
    write your code here without warnings
    ...

Just add the @ignore_warnings decorator on the function you want to ignore all warnings


回答 8

Docker解决方案

  • 在运行python应用程序之前禁用所有警告
    • 您也可以禁用dockerized测试
ENV PYTHONWARNINGS="ignore::DeprecationWarning"

Docker Solution

  • Disable ALL warnings before running the python application
    • You can disable your dockerized tests as well
ENV PYTHONWARNINGS="ignore::DeprecationWarning"

回答 9

如果您使用的是Python3,请尝试以下代码:

import sys

if not sys.warnoptions:
    import warnings
    warnings.simplefilter("ignore")

或尝试这个…

import warnings

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

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

或尝试这个…

import warnings
warnings.filterwarnings("ignore")

Try the below code if you’re Using Python3:

import sys

if not sys.warnoptions:
    import warnings
    warnings.simplefilter("ignore")

or try this…

import warnings

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

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

or try this…

import warnings
warnings.filterwarnings("ignore")

回答 10

Python 3

在编写代码之前,只需在容易记住的几行下面编写代码:

import warnings

warnings.filterwarnings("ignore")

Python 3

Just write below lines that are easy to remember before writing your code:

import warnings

warnings.filterwarnings("ignore")

回答 11

如果您知道自己在做什么,另一种方法就是简单地找到警告您的文件(该文件的路径显示在警告信息中),对生成警告的行进行注释。

If you know what you are doing, another way is simply find the file that warns you(the path of the file is shown in warning info), comment the lines that generate the warnings.


回答 12

对于python 3,只需编写以下代码即可忽略所有警告。

from warnings import filterwarnings
filterwarnings("ignore")

For python 3, just write below codes to ignore all warnings.

from warnings import filterwarnings
filterwarnings("ignore")

回答 13

不会打扰您,但会警告您,下次升级python时,您正在做的事情可能会停止工作。转换为int并完成它。

顺便说一句。您还可以编写自己的警告处理程序。只需分配一个不执行任何操作的函数即可。 如何将python警告重定向到自定义流?

Not to beat you up about it but you are being warned that what you are doing will likely stop working when you next upgrade python. Convert to int and be done with it.

BTW. You can also write your own warnings handler. Just assign a function that does nothing. How to redirect python warnings to a custom stream?