Python：关于logging的使用
关于logging的占位符的使用。
logging.info("错误信息，占位符1{}，占位符2{}", 参数1, 参数2)
但是如果是这种呢？
logging.info(
f"Loading features from cached file {cached_features_file} [took %.3f s]", time.time() - start
)
Python里面的描述：
import logging
logger = logging.getLogger(__name__)
print(logger) <Logger __main__ (WARNING)>
logging有5个级别，默认是warning。只有在默认级别及以上的会被注意到。
from pyhanlp import *
import sys
import logging
import time
logging.info("tttt")
logger = logging.getLogger(__name__)
print(logger)
start = time.time()
cached_features_file = "ok"
logging.info(f"Loading features from cached file {cached_features_file} [took %.3f s]", time.time() - start)
logging.warning("sdadacda")
结果：
<Logger main (WARNING)> WARNING:root:sdadacda
关于logging的使用，我用的地方还很少，主要都是参考下面链接。