【发布时间】：2021-09-28 20:35:56
【问题描述】：
我正在尝试将日志级别分成单独的文件（每个级别一个）。目前我已经为每个级别定义了一个文件，但是在我当前的配置下，上层会传播到下层。
我的日志配置是：
version: 1
formatters:
standard:
format: "%(asctime)s - %(name)s - %(levelname)s - %(message)s"
error:
format: "%(levelname)s <PID %(process)d:%(processName)s> %(name)s.%(funcName)s(): %(message)s"
handlers:
console:
class: logging.StreamHandler
formatter: standard
level: DEBUG
debug_file_handler:
class: logging.handlers.RotatingFileHandler
formatter: standard
level: DEBUG
filename: logs/debug.log
encoding: utf8
mode: "w"
maxBytes: 10485760 # 10MB
backupCount: 1
info_file_handler:
class: logging.handlers.RotatingFileHandler
formatter: standard
level: INFO
filename: logs/info.log
encoding: utf8
mode: "w"
maxBytes: 10485760 # 10MB
backupCount: 1
warning_file_handler:
class: logging.handlers.RotatingFileHandler
formatter: standard
level: WARNING
filename: logs/warning.log
encoding: utf8
mode: "w"
maxBytes: 10485760 # 10MB
backupCount: 1
error_file_handler:
class: logging.handlers.RotatingFileHandler
formatter: error
level: ERROR
filename: logs/error.log
encoding: utf8
mode: "w"
maxBytes: 10485760 # 10MB
backupCount: 1
critical_file_handler:
class: logging.handlers.RotatingFileHandler
formatter: error
level: CRITICAL
filename: logs/critical.log
encoding: utf8
mode: "w"
maxBytes: 10485760 # 10MB
backupCount: 1
loggers:
development:
handlers: [ console, debug_file_handler ]
propagate: false
production:
handlers: [ info_file_handler, warning_file_handler, error_file_handler, critical_file_handler ]
propagate: false
root:
handlers: [ debug_file_handler, info_file_handler, warning_file_handler, error_file_handler, critical_file_handler ]
然后我加载配置并像这样设置记录器：
with open(path_log_config_file, 'r') as config_file:
config = yaml.safe_load(config_file.read())
logging.config.dictConfig(config)
logger = logging.getLogger(LOGS_MODE)
logger.setLevel(LOGS_LEVEL)
LOGS_MODE 和 LOGS_LEVEL 在我项目的配置文件中定义：
# Available loggers: development, production
LOGS_MODE = 'production'
# Available levels: CRITICAL = 50, ERROR = 40, WARNING = 30, INFO = 20, DEBUG = 10
LOGS_LEVEL = 20
当我想使用记录器时：
from src.logger import logger
我在他们提到使用过滤器的地方找到了这些答案：#1#2，但他们都说要使用不同的处理程序并为每个处理程序指定级别，但是使用这种方法，我将不得不导入不同的记录器一些案例，而不仅仅是一个。这是实现它的唯一方法吗？
问候。
更新 1：
当我使用 YAML 文件加载记录器配置时，我找到了这个答案 #3：
所以我在我的文件logger.py中定义了过滤器：
with open(path_log_config_file, 'rt') as config_file:
config = yaml.safe_load(config_file.read())
logging.config.dictConfig(config)
class InfoFilter(logging.Filter):
def __init__(self):
super().__init__()
def filter(self, record):
return record.levelno == logging.INFO
class WarningFilter(logging.Filter):
def __init__(self):
super().__init__()
def filter(self, record):
return record.levelno == logging.WARNING
class ErrorFilter(logging.Filter):
def __init__(self):
super().__init__()
def filter(self, record):
return record.levelno == logging.ERROR
class CriticalFilter(logging.Filter):
def __init__(self):
super().__init__()
def filter(self, record):
return record.levelno == logging.CRITICAL
logger = logging.getLogger(LOGS_MODE)
logger.setLevel(LOGS_LEVEL)
在 YAML 文件中：
filters:
info_filter:
(): src.logger.InfoFilter
warning_filter:
(): src.logger.WarningFilter
error_filter:
(): src.logger.ErrorFilter
critical_filter:
(): src.logger.CriticalFilter
handlers:
console:
class: logging.StreamHandler
formatter: standard
level: DEBUG
debug_file_handler:
class: logging.handlers.RotatingFileHandler
formatter: standard
level: DEBUG
filename: logs/debug.log
encoding: utf8
mode: "w"
maxBytes: 10485760 # 10MB
backupCount: 1
info_file_handler:
class: logging.handlers.RotatingFileHandler
formatter: standard
level: INFO
filename: logs/info.log
encoding: utf8
mode: "w"
maxBytes: 10485760 # 10MB
backupCount: 1
filters: [ info_filter ]
warning_file_handler:
class: logging.handlers.RotatingFileHandler
formatter: standard
level: WARNING
filename: logs/warning.log
encoding: utf8
mode: "w"
maxBytes: 10485760 # 10MB
backupCount: 1
filters: [ warning_filter ]
error_file_handler:
class: logging.handlers.RotatingFileHandler
formatter: error
level: ERROR
filename: logs/error.log
encoding: utf8
mode: "w"
maxBytes: 10485760 # 10MB
backupCount: 1
filters: [ error_filter ]
critical_file_handler:
class: logging.handlers.RotatingFileHandler
formatter: error
level: CRITICAL
filename: logs/critical.log
encoding: utf8
mode: "w"
maxBytes: 10485760 # 10MB
backupCount: 1
filters: [ critical_filter ]
我现在的问题出在过滤器部分。我不知道如何指定每个类的名称。在回复#3 中，他使用了__main__.，因为他直接运行脚本，而不是作为模块运行，并且没有说明如果您使用模块该怎么做。
阅读User-defined objects 文档参考我尝试使用ext://，正如Access to external objects 部分所述，但我得到的错误与尝试使用src.logger.InfoFilter 指定层次结构时相同。
logging.config.dictConfig(config)
File "/usr/lib/python3.8/logging/config.py", line 808, in dictConfig
dictConfigClass(config).configure()
File "/usr/lib/python3.8/logging/config.py", line 553, in configure
raise ValueError('Unable to configure '
ValueError: Unable to configure filter 'info_filter'
python-BaseException
我的项目树是（只显示了重要的部分）：
.
├── resources
│ ├── log.yaml
│ └── properties.py
├── src
│ ├── main.py
│ └── logger.py
└── ...
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