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Python Comprehensive Logging using YAML Configuration
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| import os | |
| import yaml | |
| import logging.config | |
| import logging | |
| import coloredlogs | |
| def setup_logging(default_path='logging.yaml', default_level=logging.INFO, env_key='LOG_CFG'): | |
| """ | |
| | **@author:** Prathyush SP | |
| | Logging Setup | |
| """ | |
| path = default_path | |
| value = os.getenv(env_key, None) | |
| if value: | |
| path = value | |
| if os.path.exists(path): | |
| with open(path, 'rt') as f: | |
| try: | |
| config = yaml.safe_load(f.read()) | |
| logging.config.dictConfig(config) | |
| coloredlogs.install() | |
| except Exception as e: | |
| print(e) | |
| print('Error in Logging Configuration. Using default configs') | |
| logging.basicConfig(level=default_level) | |
| coloredlogs.install(level=default_level) | |
| else: | |
| logging.basicConfig(level=default_level) | |
| coloredlogs.install(level=default_level) | |
| print('Failed to load configuration file. Using default configs') |
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| version: 1 | |
| disable_existing_loggers: true | |
| 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 | |
| level: DEBUG | |
| formatter: standard | |
| stream: ext://sys.stdout | |
| info_file_handler: | |
| class: logging.handlers.RotatingFileHandler | |
| level: INFO | |
| formatter: standard | |
| filename: /tmp/info.log | |
| maxBytes: 10485760 # 10MB | |
| backupCount: 20 | |
| encoding: utf8 | |
| error_file_handler: | |
| class: logging.handlers.RotatingFileHandler | |
| level: ERROR | |
| formatter: error | |
| filename: /tmp/errors.log | |
| maxBytes: 10485760 # 10MB | |
| backupCount: 20 | |
| encoding: utf8 | |
| debug_file_handler: | |
| class: logging.handlers.RotatingFileHandler | |
| level: DEBUG | |
| formatter: standard | |
| filename: /tmp/debug.log | |
| maxBytes: 10485760 # 10MB | |
| backupCount: 20 | |
| encoding: utf8 | |
| critical_file_handler: | |
| class: logging.handlers.RotatingFileHandler | |
| level: CRITICAL | |
| formatter: standard | |
| filename: /tmp/critical.log | |
| maxBytes: 10485760 # 10MB | |
| backupCount: 20 | |
| encoding: utf8 | |
| warn_file_handler: | |
| class: logging.handlers.RotatingFileHandler | |
| level: WARN | |
| formatter: standard | |
| filename: /tmp/warn.log | |
| maxBytes: 10485760 # 10MB | |
| backupCount: 20 | |
| encoding: utf8 | |
| root: | |
| level: NOTSET | |
| handlers: [console] | |
| propogate: yes | |
| loggers: | |
| <module>: | |
| level: INFO | |
| handlers: [console, info_file_handler, error_file_handler, critical_file_handler, debug_file_handler, warn_file_handler] | |
| propogate: no | |
| <module.x>: | |
| level: DEBUG | |
| handlers: [info_file_handler, error_file_handler, critical_file_handler, debug_file_handler, warn_file_handler] | |
| propogate: yes |
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