In Python, how does one catch warnings as if they were exceptions?(在 Python 中,如何将警告视为异常?)
问题描述
我在 python 代码中使用的第三方库(用 C 编写)发出警告.我希望能够使用 try
except
语法来正确处理这些警告.有没有办法做到这一点?
A third-party library (written in C) that I use in my python code is issuing warnings. I want to be able to use the try
except
syntax to properly handle these warnings. Is there a way to do this?
推荐答案
要将警告作为错误处理,只需使用以下代码:
To handle warnings as errors simply use this:
import warnings
warnings.filterwarnings("error")
在此之后,您将能够捕获与错误相同的警告,例如这将起作用:
After this you will be able to catch warnings same as errors, e.g. this will work:
try:
some_heavy_calculations()
except RuntimeWarning:
import ipdb; ipdb.set_trace()
附:添加此答案是因为评论中的最佳答案包含拼写错误:filterwarnigns
而不是 filterwarnings
.
P.S. Added this answer because the best answer in comments contains misspelling: filterwarnigns
instead of filterwarnings
.
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