[Python知识库]等待文件生成后处理

from datetime import datetime, timedelta
import os, time

class DealFile():
    def __init__(self):
        pass

    def getTimeNow(self):
        now = datetime.now()
        return now

    def getTimeYesterday(self):
        yesterday = self.getTimeNow() - timedelta(days=1)
        return yesterday

    def checkDataFile(self):
        txt_yesterday = self.getTimeYesterday().strftime('%Y%m%d')
        file_name = txt_yesterday+'.html'
        file_pathwithname = '\\'.join([os.getcwd(), txt_yesterday, file_name])
        res = os.path.exists(file_pathwithname)
        return res

    def checTargetFile(self):
        txt_yesterday = self.getTimeYesterday().strftime('%Y%m%d')
        file_name = txt_yesterday+'.txt'
        file_pathwithname = '\\'.join([os.getcwd(), txt_yesterday, file_name])
        res = os.path.exists(file_pathwithname)
        return res

    def action(self):
        i = 0
        while i == 0:
            print('休息1秒')
            time.sleep(1)
            while self.checkDataFile():
                print('开始执行文件，休息两秒')
                time.sleep(2)
                print('判断结果文件是否存在，如果是休息10秒')
                while self.checTargetFile():
                    print('文件存在，10秒')
                    time.sleep(10)