解决Python logging模块无法正常输出日志的问题

File：logger.conf
 
[formatters]
keys=default
 
[formatter_default]
format=%(asctime)s - %(name)s - %(levelname)s - %(message)s
class=logging.Formatter
 
[handlers]
keys=console, error_file
 
[handler_console]
class=logging.StreamHandler
formatter=default
args=tuple()
 
[handler_error_file]
class=logging.FileHandler
level=INFO
formatter=default
args=("logger.log", "a")
 
[loggers]
keys=root
 
[logger_root]
level=DEBUG
formatter=default
handlers=console,error_file

File：logger.py
 
#!/bin/env python
 
import logging
from logging.config import logging
 
class Test(object):
 """docstring for Test"""
 def __init__(self):
 logging.config.fileConfig("logger.conf")
 self.logger = logging.getLogger(__name__)
 
 def test_func(self):
 self.logger.error('test_func function')
 
class Worker(object):
 """docstring for Worker"""
 def __init__(self):
 logging.config.fileConfig("logger.conf")
 self.logger = logging.getLogger(__name__)
 
 data_logger = logging.getLogger('data')
 handler = logging.FileHandler('./data.log')
 fmt = logging.Formatter('%(asctime)s|%(message)s')
 handler.setFormatter(fmt)
 data_logger.addHandler(handler)
 data_logger.setLevel(logging.DEBUG)
 self.data_logger = data_logger
 
 def test_logger(self):
 self.data_logger.error("test_logger function")
 instance = Test()
 self.data_logger.error("test_logger output")
 instance.test_func()
 
 
def main():
 worker = Worker()
 worker.test_logger()
 
if __name__ == '__main__':
 main()

File：logger.conf
 
[formatters]
keys=default, data
 
[formatter_default]
format=%(asctime)s - %(name)s - %(levelname)s - %(message)s
class=logging.Formatter
 
[formatter_data]
format=%(asctime)s|%(message)s
class=logging.Formatter
 
[handlers]
keys=console, error_file, data_file
 
[handler_console]
class=logging.StreamHandler
formatter=default
args=tuple()
 
[handler_error_file]
class=logging.FileHandler
level=INFO
formatter=default
args=("logger.log", "a")
 
[handler_data_file]
class=logging.FileHandler
level=INFO
formatter=data
args=("data_new.log", "a")
 
[loggers]
keys=root, data
 
[logger_root]
level=DEBUG
handlers=console,error_file
 
[logger_data]
level=DEBUG
handlers=data_file
qualname=data
propagate=0

File：logger.py
 
#!/bin/env python
 
import logging
from logging.config import logging
 
class Test(object):
 """docstring for Test"""
 def __init__(self):
 self.logger = logging.getLogger(__name__)
 
 def test_func(self):
 self.logger.error('test_func function')
 
class Worker(object):
 """docstring for Worker"""
 def __init__(self):
 logging.config.fileConfig("logger.conf")
 self.logger = logging.getLogger(__name__)
 self.data_logger = logging.getLogger('data')
 
 def test_logger(self):
 self.data_logger.error("test_logger function")
 instance = Test()
 self.data_logger.error("test_logger output")
 instance.test_func()
 
 
def main():
 worker = Worker()
 worker.test_logger()
 
if __name__ == '__main__':
 main()