Python日志:如何在StreamHandler中禁用警告

Question

我使用了2个处理程序，我不想在StremHandler中像这样编写所有的库警告

See the caveats in the documentation: https://pandas.pydata.org/pandas-docs/stable/user_guide/indexing.html#returning-a-view-versus-a-copy
return super().rename(
/home/anaconda3/envs/test_pr/lib/python3.8/site-packages/pandas/core/frame.py:4441: SettingWithCopyWarning: 
A value is trying to be set on a copy of a slice from a DataFrame

我尝试使用logging.disable(logging.WARNING)，但它不工作。

我的StreamHandler是

logger = logging.getLogger()
logger.setLevel(logging.INFO)
# create console handler
ch = logging.StreamHandler(sys.stdout)
ch.setLevel(logging.INFO)
logger.addHandler(ch)

Answer 1

为你的处理器添加一个过滤器，过滤掉你不想输出的内容:

def filter(record):
"""Filter out warnings - this is just an example"""
return record.levelno != logging.WARNING
ch = logging.StreamHandler(sys.stdout)
ch.addFilter(filter)