Python try_finally

                
                  
                    #
                  
                  
                    !/usr/bin/python
                  
                  
                    import
                  
                  
                     time


                  
                  
                    try
                  
                  
                    :
    f
                  
                  =file(
                  
                    '
                  
                  
                    poem.txt
                  
                  
                    '
                  
                  
                    )
    
                  
                  
                    while
                  
                  
                     True:
        line
                  
                  =
                  
                    f.readline()
        
                  
                  
                    if
                  
                   len(line)==
                  
                    0:
            
                  
                  
                    break
                  
                  
                    
        time.sleep(
                  
                  2
                  
                    )
        
                  
                  
                    print
                  
                  
                     line,

                  
                  
                    finally
                  
                  
                    :
    f.close()
    
                  
                  
                    print
                  
                  
                    '
                  
                  
                    file.close
                  
                  
                    '