Python查找文件

import os
import collections


def getfile(dir_fiile):
    allFileNum = 0 
    baseUrl=dir_fiile
    list = os.listdir(baseUrl)    
    filelist = [] 
    for i in range(0, len(list)):
        #遍历 
        path = os.path.join(baseUrl,list[i])
        allFileNum = allFileNum + 1
        if os.path.isfile(path):  
            filelist.append(list[i])        
        else:
            print "没有找到测试报告"
    return filelist[-2]