解决Python中由于logging模块误用导致的内存泄露

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 = []