loguru-master资源-CSDN文库

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txt：76个

rst：16个

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《loguru：Python日志管理库的深度解析》在Python编程中，日志记录是一项不可或缺的功能，它有助于开发者追踪程序运行状态、定位错误及调试问题。Loguru库以其简洁易用的API和强大的功能，成为了Python日志处理领域的新星。本文将深入探讨loguru库，帮助读者掌握其核心概念和实际应用。一、loguru概述 Loguru是一个旨在简化Python日志记录的第三方库，它的设计目标是提供比内置的logging模块更直观、更人性化的体验。Loguru通过提供面向对象的接口，让日志记录如同调用函数般简单，同时也支持自定义日志格式和多种处理方式，满足不同项目的需求。二、安装与基本使用要使用loguru，首先需要通过pip进行安装： ``` pip install loguru ``` 安装完成后，可以引入loguru库并设置基本的日志记录： ```python import loguru logger = loguru.logger.add("app.log", level="INFO") logger.info("这是第一条日志信息") ``` 这段代码会在当前目录下创建一个名为"app.log"的文件，记录所有级别为INFO及以上的日志信息。三、日志级别与过滤器 Loguru支持标准的日志级别，包括DEBUG、INFO、WARNING、ERROR和CRITICAL。通过设置level参数，可以控制记录的日志级别。例如，以下代码只会记录ERROR级别的日志： ```python logger.add("errors.log", level="ERROR") ``` 此外，还可以通过filter函数实现更复杂的过滤条件，如基于日志消息的内容或函数调用的上下文进行过滤。四、自定义日志格式 Loguru的一大亮点是其灵活的自定义日志格式能力。通过使用format参数，我们可以定制日志输出的样式。例如，下面的代码将添加时间戳、进程ID和线程ID到日志： ```python logger.add("custom_format.log", format="{time} - {process} - {thread} - {message}") ``` 五、处理器与拦截器处理器（Handler）是loguru中的一个重要概念，它们负责将日志消息转化为可写入的格式。除了默认的文件处理器外，loguru还支持将日志发送到控制台、网络、邮件等。拦截器则允许在日志被记录之前进行额外的处理，如添加额外的信息或者修改日志内容。六、异常处理与堆栈跟踪 Loguru可以方便地捕获和记录异常信息，只需在try/except块中调用logger.error即可： ```python try: # 捕获异常 raise Exception("发生了错误") except Exception as e: logger.error(str(e), exc_info=True) ``` exc_info=True会记录异常的堆栈信息，这对于调试非常有帮助。七、装饰器与上下文管理器为了方便在特定函数或代码块中记录日志，loguru提供了装饰器和上下文管理器。例如，下面的代码会在函数执行前后分别记录日志： ```python @logger.catch def do_something(): # 函数执行逻辑 pass with logger.context("执行环境"): # 代码块执行逻辑 ``` 八、总结 Loguru以其出色的易用性和强大的功能，为Python日志记录提供了全新的解决方案。通过理解并熟练运用上述知识点，开发者能够更高效地管理和监控程序日志，提升开发效率和问题解决能力。无论是在小型项目还是大型系统中，loguru都值得成为Python日志管理的首选工具。

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loguru-master （267个子文件）

make.bat 810B

loguru.css 163B

demo.gif 187KB

.gitignore 1KB

layout.html 4KB

breadcrumbs.html 97B

MANIFEST.in 57B

tox.ini 900B

copybutton.js 3KB

settings.json 148B

LICENSE 1KB

Makefile 604B

SECURITY.md 1012B

logo.png 32KB

_logger.py 92KB

test_filesink_rotation.py 31KB

test_opt.py 20KB

test_multiprocessing.py 16KB

_better_exceptions.py 16KB

test_coroutine_sink.py 15KB

_colorizer.py 14KB

_file_sink.py 14KB

_handler.py 12KB

test_exceptions_catch.py 11KB

test_pickling.py 10KB

test_filesink_retention.py 10KB

test_filesink_compression.py 9KB

test_add_option_enqueue.py 8KB

test_levels.py 8KB

test_add_option_colorize.py 8KB

conftest.py 8KB

test_formatting.py 7KB

test_exceptions_formatting.py 7KB

test_ansimarkup_extended.py 6KB

test_ansimarkup_basic.py 6KB

test_add_sinks.py 6KB

test_contextualize.py 5KB

conf.py 5KB

test_datetime.py 5KB

test_configure.py 5KB

test_interception.py 5KB

test_repr.py 5KB

test_standard_handler.py 5KB

_string_parsers.py 5KB

test_filesink_watch.py 4KB

test_parse.py 4KB

test_add_option_serialize.py 4KB

test_add_option_catch.py 4KB

test_locks.py 4KB

test_threading.py 4KB

test_activation.py 4KB

setup.py 3KB

test_filesink_delay.py 3KB

test_add_option_filter.py 3KB

_datetime.py 3KB

_simple_sinks.py 3KB

_defaults.py 3KB

test_propagation.py 3KB

test_remove.py 3KB

test_add_option_format.py 3KB

test_patch.py 2KB

_recattrs.py 2KB

test_recattr.py 2KB

test_bind.py 2KB

test_add_option_kwargs.py 2KB

_ctime_functions.py 1KB

_colorama.py 1KB

autodoc_stub_file.py 1KB

_locks_machinery.py 1KB

test_filesink_permissions.py 1KB

test_deepcopy.py 1KB

test_defaults.py 1KB

missing_attributes_traceback_objects.py 1KB

_error_interceptor.py 1KB

test_get_frame.py 818B

test_add_option_level.py 815B

source_multilines.py 787B

sys_tracebacklimit_unset.py 714B

suppressed_expression_direct.py 693B

sys_tracebacklimit_none.py 676B

sys_tracebacklimit_negative.py 674B

sys_tracebacklimit.py 673B

callback.py 665B

assertion_from_lib.py 644B

chained_expression_direct.py 642B

parenthesis.py 641B

nested_with_reraise.py 640B

assertion_from_local.py 637B

indirect.py 630B

__init__.py 626B

decorated_callback.py 624B

chaining_third.py 624B

enqueue_with_others_handlers.py 618B

_filters.py 618B

direct.py 612B

catch_decorator_from_lib.py 611B

syntaxerror.py 611B

string_lib.py 609B

_asyncio_loop.py 597B

catch_decorator.py 587B

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1) File "tests/exceptions/source/backtrace/raising_recursion.py", line 13, in a n / 0 ZeroDivisionError: division by zero Traceback (most recent call last): > File "tests/exceptions/source/backtrace/raising_recursion.py", line 33, in <module> a(2) File "tests/exceptions/source/backtrace/raising_recursion.py", line 13, in a n / 0 ZeroDivisionError: division by zero Traceback (most recent call last): File "tests/exceptions/source/backtrace/raising_recursion.py", line 34, in <module> a(3) File "tests/exceptions/source/backtrace/raising_recursion.py", line 12, in a a(n - 1) File "tests/exceptions/source/backtrace/raising_recursion.py", line 12, in a a(n - 1) > File "tests/exceptions/source/backtrace/raising_recursion.py", line 12, in a a(n - 1) File "tests/exceptions/source/backtrace/raising_recursion.py", line 13, in a n / 0 ZeroDivisionError: division by zero Traceback (most recent call last): File "tests/exceptions/source/backtrace/raising_recursion.py", line 34, in <module> a(3) File "tests/exceptions/source/backtrace/raising_recursion.py", line 12, in a a(n - 1) > File "tests/exceptions/source/backtrace/raising_recursion.py", line 12, in a a(n - 1) File "tests/exceptions/source/backtrace/raising_recursion.py", line 13, in a n / 0 ZeroDivisionError: division by zero Traceback (most recent call last): File "tests/exceptions/source/backtrace/raising_recursion.py", line 34, in <module> a(3) > File "tests/exceptions/source/backtrace/raising_recursion.py", line 12, in a a(n - 1) File "tests/exceptions/source/backtrace/raising_recursion.py", line 13, in a n / 0 ZeroDivisionError: division by zero Traceback (most recent call last): > File "tests/exceptions/source/backtrace/raising_recursion.py", line 34, in <module> a(3) File "tests/exceptions/source/backtrace/raising_recursion.py", line 13, in a n / 0 ZeroDivisionError: division by zero Traceback (most recent call last): File "tests/exceptions/source/backtrace/raising_recursion.py", line 36, in <module> b(1) File "tests/exceptions/source/backtrace/raising_recursion.py", line 19, in b b(n - 1) > File "tests/exceptions/source/backtrace/raising_recursion.py", line 20, in b n / 0 ZeroDivisionError: division by zero Traceback (most recent call last): File "tests/exceptions/source/backtrace/raising_recursion.py", line 36, in <module> b(1) > File "tests/exceptions/source/backtrace/raising_recursion.py", line 20, in b n / 0 ZeroDivisionError: division by zero Traceback (most recent call last): File "tests/exceptions/source/backtrace/raising_recursion.py", line 37, in <module> b(2) File "tests/exceptions/source/backtrace/raising_recursion.py", line 19, in b b(n - 1) File "tests/exceptions/source/backtrace/raising_recursion.py", line 19, in b b(n - 1) > File "tests/exceptions/source/backtrace/raising_recursion.py", line 20, in b n / 0 ZeroDivisionError: division by zero Traceback (most recent call last): File "tests/exceptions/source/backtrace/raising_recursion.py", line 37, in <module> b(2) File "tests/exceptions/source/backtrace/raising_recursion.py", line 19, in b b(n - 1) > File "tests/exceptions/source/backtrace/raising_recursion.py", line 20, in b n / 0 ZeroDivisionError: division by zero Traceback (most recent call last): File "tests/exceptions/source/backtrace/raising_recursion.py", line 37, in <module> b(2) > File "tests/exceptions/source/backtrace/raising_recursion.py", line 20, in b n / 0 ZeroDivisionError: division by zero Traceback (most recent call last): File "tests/exceptions/source/backtrace/raising_recursion.py", line 38, in <module> b(3) File "tests/exceptions/source/backtrace/raising_recursion.py", line 19, in b b(n - 1) File "tests/exceptions/source/backtrace/raising_recursion.py", line 19, in b b(n - 1) File "tests/exceptions/source/backtrace/raising_recursion.py", line 19, in b b(n - 1) > File "tests/exceptions/source/backtrace/raising_recursion.py", line 20, in b n / 0 ZeroDivisionError: division by zero Traceback (most recent call last): File "tests/exceptions/source/backtrace/raising_recursion.py", line 38, in <module> b(3) File "tests/exceptions/source/backtrace/raising_recursion.py", line 19, in b b(n - 1) File "tests/exceptions/source/backtrace/raising_recursion.py", line 19, in b b(n - 1) > File "tests/exceptions/source/backtrace/raising_recursion.py", line 20, in b n / 0 ZeroDivisionError: division by zero Traceback (most recent call last): File "tests/exceptions/source/backtrace/raising_recursion.py", line 38, in <module> b(3) File "tests/exceptions/source/backtrace/raising_recursion.py", line 19, in b b(n - 1) > File "tests/exceptions/source/backtrace/raising_recursion.py", line 20, in b n / 0 ZeroDivisionError: division by zero Traceback (most recent call last): File "tests/exceptions/source/backtrace/raising_recursion.py", line 38, in <module> b(3) > File "tests/exceptions/source/backtrace/raising_recursion.py", line 20, in b n / 0 ZeroDivisionError: division by zero Traceback (most recent call last): File "tests/exceptions/source/backtrace/raising_recursion.py", line 40, in <module> c(1) File "tests/exceptions/source/backtrace/raising_recursion.py", line 26, in c c(n - 1) > File "tests/exceptions/source/backtrace/raising_recursion.py", line 27, in c n / 0 ZeroDivisionError: division by zero Traceback (most recent call last): File "tests/exceptions/source/backtrace/raising_recursion.py", line 40, in <module> c(1) > File "tests/exceptions/source/backtrace/raising_recursion.py", line 27, in c n / 0 ZeroDivisionError: division by zero Traceback (most recent call last): File "tests/exceptions/source/backtrace/raising_recursion.py", line 41, in <module> c(2) File "tests/exceptions/source/backtrace/raising_recursion.py", line 26, in c c(n - 1) File "tests/exceptions/source/backtrace/raising_recursion.py", line 26, in c c(n - 1) > File "tests/exceptions/source/backtrace/raising_recursion.py", line 27, in c n / 0 ZeroDivisionError: division by zero Traceback (most recent call last): File "tests/exceptions/source/backtrace/raising_recursion.py", line 41, in <module> c(2) File "tests/exceptions/source/backtrace/raising_recursion.py", line 26, in c c(n - 1) > File "tests/exceptions/source/backtrace/raising_recursion.py", line 27, in c n / 0 ZeroDivisionError: division by zero Traceback (most recent call last): File "tests/exceptions/source/backtrace/raising_recursion.py", line 41, in <module> c(2) > File "tests/exceptions/sourc

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