Python中由于logging模块误用导致的内存泄露的解决方法

import logging
 
 
class Connection(object):
def __init__(self):
self._logger_name = "Connection.{}".format(id(self))
self.logger = logging.getLogger(self._logger_name)

def getLogger(name=None):
"""
Return a logger with the specified name, creating it if necessary.
 
If no name is specified, return the root logger.
"""
if name:
return Logger.manager.getLogger(name)
else:
return root

if name in self.loggerDict:
rv = self.loggerDict[name]
if isinstance(rv, PlaceHolder):
ph = rv
rv = (self.loggerClass or _loggerClass)(name)
rv.manager = self
self.loggerDict[name] = rv
self._fixupChildren(ph, rv)
self._fixupParents(rv)
else:
rv = (self.loggerClass or _loggerClass)(name)
rv.manager = self
self.loggerDict[name] = rv
self._fixupParents(rv)

logging.Logger.manager.loggerDict.pop(self._logger_name)
self.logger.manager = None
self.logger.handlers = []