logging-config 1.0.1

A wrapper class for the Python standard logging module

logging-config
==============

A configuration wrapper class for the standard Python logging package. Since
DictConfigurator is not available until 2.7 and I still need to support 2.6,
I wanted a consistent way to handle configuration of application logging.

I've attempted to match the configuration dictionary schema as much as it makes
sense to do so. For more information on the configuration dictionary schema
check out http://docs.python.org/library/logging.config.html#logging-config-dictschema

Example Config
--------------

{'loggers': {'pika': {'propagate': True, 'level': 'INFO'},
'tinman': {'propagate': True, 'level': 'INFO'}},
'formatters': {'syslog': ('%(levelname)s <PID %(process)d:%(processName)s> '
'%(name).%(funcName)s: %(message)s'),
'verbose': ('%(levelname) -10s %(asctime)s %(name) -30s '
'%(funcName) -25s: %(message)s')},
'filters': None,
'handlers': {'syslog': {'facility': 'local6',
'level': 'INFO',
'formatter': 'syslog',
'class': 'logging.handlers.SysLogHandler',
'address': '/var/run/syslog'},
'console': {'formatter': 'verbose',
'debug_only': True,
'class': 'logging.StreamHandler',
'level': 'DEBUG'}}}

Example use
-----------

Given a yaml file "example.yaml":

%YAML 1.2
---
loggers:
pika:
level: INFO
propagate: True
tinman:
level: INFO
propagate: True
file:
filename: /var/log/example.log
class: logging.RotatingFileHandler
mode: a
maxBytes: 104857600
backupCount: 6
encoding: UTF-8
delay: False
formatter: verbose
filters:
my_logger: my_app.*
formatters:
verbose: "%(levelname) -10s %(asctime)s %(name) -30s %(funcName) -25s: %(message)s"
syslog: "%(levelname)s <PID %(process)d:%(processName)s> %(name).%(funcName)s: %(message)s"
handlers:
console:
class: logging.StreamHandler
formatter: verbose
debug_only: True
level: DEBUG
syslog:
class: logging.handlers.SysLogHandler
facility: local6
address: /var/run/syslog
filters: [my_logger]
formatter: syslog
level: INFO

The following code will setup the logging module with the specified handlers:

import logging_config
import yaml

with open('example.yaml', 'r') as handle:
config = yaml.load(handle)

cfg = logging_config.Logging(config)
cfg.setup()