human
Solve the following python programming problem given the following code:
def custom_feeder(input, coro = None) : 
    def write_proc(fin, pipe, coro = None) : 
        while True : 
            data = (yield os.read (fin.fileno (), (8 * 1024))) 
            if (not data) : 
                break 
n = (yield pipe.write (data, full = True)) 
            assert (n == len (data)) 
fin.close () 
        pipe.stdin.close () 
def read_proc(pipe, coro = None) : 
        data = (yield pipe.stdout.read ()) 
        pipe.stdout.close () 
        raise StopIteration (data) 
if (platform.system () == 'Windows') : 
        pipe = asyncoro.asyncfile.Popen (['\\cygwin64\\bin\\sha1sum.exe'], stdin = subprocess.PIPE, stdout = subprocess.PIPE) 
else : 
        pipe = subprocess.Popen (['sha1sum'], stdin = subprocess.PIPE, stdout = subprocess.PIPE) 
async_pipe = asyncoro.asyncfile.AsyncPipe (stdout) 
    reader = asyncoro.Coro (read_proc, async_pipe) 
    writer = asyncoro.Coro (write_proc, open (input), async_pipe) 
    stdout = (yield reader.finish ()) 
    print (('     feeder sha1sum: %s' % stdout)) 

    
    

    Fix the buggy line: async_pipe = asyncoro.asyncfile.AsyncPipe (stdout)
assistant
#Here is Python program to fix the buggy line: async_pipe = asyncoro.

async_pipe = asyncoro.asyncfile.AsyncPipe (pipe)