代码的重试机制（python简单实现）

# -*-coding:utf-8-*-
'''
Created on 2015年5月27日

@author: kanpiaoxue
'''
from time import sleep

class RetryClass(object):
    def __init__(self, retryTimes, intervalTimes):
        self.retryTimes = retryTimes
        self.intervalTimes = intervalTimes
        
    def doAction(self):
        print 'doAction'
        
        retryRunCount = 0
        while True:
            try:
                self.retryAction()
                break
            except IOError, ex:
                print 'catch Exception:', IOError, ':', ex
                if retryRunCount < self.retryTimes:
                    retryRunCount += 1
                    print 'after', self.intervalTimes, 'seconds it will retry again for times:' , retryRunCount
                    sleep(self.intervalTimes)
                    continue
                else:
                    msg = 'it retry ' + str(retryRunCount) + ' times. But it does not run successfully! Please check it.'
                    raise Exception(msg)
        
    def retryAction(self):
        print 'retryAction'
        raise IOError('retryAction')

if __name__ == '__main__':
    retryTimes = 10
    intervalTimes = 1
    retry = RetryClass(retryTimes, intervalTimes)
    retry.doAction()