human
Solve the following python programming problem given the following code:
def _iter_lines(proc, decode, linesize) : 
    try : 
        from selectors import DefaultSelector, EVENT_READ 
except ImportError : 
        from select import select 
        def selector() : 
            while True : 
                (rlist, _, _) = select ([proc.stdout, proc.stderr], [], []) 
                for stream in rlist : 
                    (yield ((stream is proc.stderr), decode (stream.readline (linesize)))) 
else : 
        def selector() : 
            sel = DefaultSelector () 
            sel.register (proc.stdout, EVENT_READ, 0) 
            sel.register (proc.stderr, EVENT_READ, 1) 
            while True : 
                for (key, mask) in sel.select () : 
                    (yield (key.data, decode (key.fileobj.readline (linesize)))) 
for ret in selector () : 
        (yield ret) 
        if (proc.poll () is not None) : 
            break 
for line in line.stdout : 
        (yield (0, decode (line))) 
for line in proc.stderr : 
        (yield (1, decode (line))) 

    
    

    Fix the buggy line: for line in line.stdout :
assistant
#Here is Python program to fix the buggy line: for line in line.

for line in proc.stdout :