Enum ---- python enum class

2022-07-14 约 268 字 预计阅读 1 分钟

创建方式

继承 Enum 类

直接继承 Enum

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from enum import Enum, auto

class Color(Enum):
    green = 1
    red = 2

class Color2(Enum):
    green = auto()
    red = auto()

继承其他类

正确方法

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class Color(str, Enum):
    green = 'green'
    red = 'red'

错误方法

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class Color(Enum, str):
    green = 'green'
    red = 'red'

原因分析：

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Loguru

2022-07-14 约 1319 字 预计阅读 3 分钟

demo

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from loguru import logger

# 添加log
logger.debug("That's it, beautiful and simple logging!")

# handler, 设置处理方式
logger.add(sys.stderr, format="{time} {level} {message}", filter="my_module", level="INFO")
logger.add("file_{time}.log")
# 写入文件方式
logger.add("file_1.log", rotation="500 MB")    # Automatically rotate too big file
logger.add("file_2.log", rotation="12:00")     # New file is created each day at noon
logger.add("file_3.log", rotation="1 week")    # Once the file is too old, it's rotated

logger.add("file_X.log", retention="10 days")  # Cleanup after some time

logger.add("file_Y.log", compression="zip")    # Save some loved space

# 类似 format 的格式
logger.info("If you're using Python {}, prefer {feature} of course!", 3.6, feature="f-strings")

# context 形式捕捉 log
@logger.catch
def my_function(x, y, z):
    # An error? It's caught anyway!
    return 1 / (x + y + z)

# 支持 html 标签格式化
logger.add(sys.stdout, colorize=True, format="<green>{time}</green> <level>{message}</level>")

# 为 backtrace 异常调用栈，单独设置 log handler
logger.add("out.log", backtrace=True, diagnose=True)  # Caution, may leak sensitive data in prod

概念

Sink

参考：

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