python 之 查找某目录中最新的文件

记录一下这个方法，感觉很有用！>.<

 import os
 def find_newest_file(path_file):
     lists = os.listdir(path_file)
     lists.sort(key=lambda fn: os.path.getmtime(path_file +'\\'+fn))
     print(lists)
     file_newest = os.path.join(path_file,lists[-1])
     return file_newest
 if __name__ =='__main__':
     file_newest = find_newest_file(r'D:\pythoncode\login_test\report')
     print(file_newest)