loguru的PyPI地址为:https://pypi.org/project/loguru/
GitHub仓库地址为:https://github.com/Delgan/loguru
我们可以直接使用pip命令对其进行安装
pip install loguru
或者下载其源码,使用Python命令进行安装。
from loguru import logger
logger.info("中文loguru")
logger.debug("中文loguru")
logger.error("中文loguru")
logger.warning("中文loguru")
2020-03-07 15:51:05.752 | INFO | __main__:info:23 - 中文loguru
2020-03-07 15:51:05.753 | DEBUG | __main__:debug:26 - 中文loguru
2020-03-07 15:51:05.753 | WARNING | __main__:warning:29 - 中文loguru
2020-03-07 15:51:05.753 | ERROR | __main__:error:32 - 中文loguru
可以看到其默认的输出格式是包含【时间、级别、模块名、行号以及日志信息】,不需要手动创建 logger ,直接使用即可,另外其输出还是彩色的,看起来会更加友好。
一般情况,我们都需要将日志输出保存到文件中,loguru直接通过 add() 方法,就可以配置一个日志文件,如下代码所示:
# coding:utf-8
from loguru import logger
logger.add("interface_log_{time}.log", rotation="500MB", encoding="utf-8", enqueue=True, compression="zip", retention="10 days")
logger.info("中文test")
logger.debug("中文test")
logger.error("中文test")
logger.warning("中文test")
{time}
encoding="utf-8"
enqueue=True
rotation="500 MB"
rotation="12:00"
rotation="1 week"
rotation
retention
compression
最重要的!loguru还提供了字符串格式化输出日志的功能,如下面代码
logger.info('If you are using Python {}, prefer {feature} of course!', 3.6, feature='f-strings')
n1 = "cool"
n2 = [1, 2, 3]
logger.info(f'If you are using Python {n1}, prefer {n2} of course!')
2020-03-07 16:19:25.363 | INFO | __main__:<module>:43 - If you are using Python 3.6, prefer f-strings of course!
2020-03-07 16:19:25.364 | INFO | __main__:<module>:46 - If you are using Python cool, prefer [1, 2, 3] of course!
可以看到,只要你会Python字符串格式化输出,这个简直信手拈来!
日志输出路径:你的项目路径下的log文件夹下
注意:这个是工具类,需要放在项目路径下的util文件夹之类的,不能直接放项目路径下哈,不然路径会生成错误哦
"""
操作日志记录
"""
import time
from loguru import logger
from pathlib import Path
project_path = Path.cwd().parent
log_path = Path(project_path, "log")
t = time.strftime("%Y_%m_%d")
class Loggings:
__instance = None
logger.add(f"{log_path}/interface_log_{t}.log", rotation="500MB", encoding="utf-8", enqueue=True,
retention="10 days")
def __new__(cls, *args, **kwargs):
if not cls.__instance:
cls.__instance = super(Loggings, cls).__new__(cls, *args, **kwargs)
return cls.__instance
def info(self, msg):
return logger.info(msg)
def debug(self, msg):
return logger.debug(msg)
def warning(self, msg):
return logger.warning(msg)
def error(self, msg):
return logger.error(msg)
loggings = Loggings()
if __name__ == '__main__':
loggings.info("中文test")
loggings.debug("中文test")
loggings.warning("中文test")
loggings.error("中文test")
logger.info('If you are using Python {}, prefer {feature} of course!', 3.6, feature='f-strings')
n1 = "cool"
n2 = [1, 2, 3]
logger.info(f'If you are using Python {n1}, prefer {n2} of course!')