import sys

 class Buffer(object):

     def __init__(self):

         self.buffer = []

     def write(self, *args, **kwargs):

         self.buffer.append(args)

 def test():

     stdout = sys.stdout

     sys.stdout = open('hello_stdout', 'wb')

     print 'test'

     sys.stdout.close()

     sys.stdout = stdout

     stdout = sys.stdout

     sys.stdout = Buffer()

     print 'buffer1'

     print 'buffer2'

     buff, sys.stdout = sys.stdout, stdout

     print buff.buffer

 if __name__ == '__main__':

     test()