human
Solve the following python programming problem given the following code:
def _get_console_size_linux() : 
    def ioctl_GWINSZ(fd) : 
        try : 
            import fcntl, termios, struct, os 
            cr = struct.unpack ('hh', fcntl.ioctl (fd, termios.TIOCGWINSZ, '1234')) 
except : 
            return None 
return cr 
cr = (ioctl_GWINSZ (0) or ioctl_GWINSZ (1) or ioctl_GWINSZ (2)) 
    if (not cr) : 
        try : 
            fd = os.open (os.ctermid (), os.O_RDONLY) 
            cr = ioctl_GWINSZ (cr) 
            os.close (fd) 
except : 
            pass 
if (not cr) : 
        try : 
            cr = (os.environ ['LINES'], os.environ ['COLUMNS']) 
except : 
            return None 
return (int (cr [1]), int (cr [0])) 

    
    

    Fix the buggy line: cr = ioctl_GWINSZ (cr)
assistant
#Here is Python code to fix the buggy line: cr = ioctl_GWINSZ (cr)
.

cr = ioctl_GWINSZ (fd)