• Masahiro Yamada's avatar
    tools, scripts: refactor error-out statements of Python scripts · 31e2141d
    Masahiro Yamada authored
    In Python, sys.exit() function can also take an object other
    than an integer.
    
    If an integer is given to the argument, Python exits with the return
    code of it.  If a non-integer argument is given, Python outputs it
    to stderr and exits with the return code of 1.
    
    That means,
    
        print >> sys.stderr, "Blah Blah"
        sys.exit(1)
    
    is equivalent to
    
        sys.exit("Blah Blah")
    
    The latter is a useful shorthand.
    
    Note:
    Some error messages in Buildman and Patman were output to stdout.
    But they should go to stderr.  They are also fixed by this commit.
    This is a nice side effect.
    Signed-off-by: 's avatarMasahiro Yamada <yamada.m@jp.panasonic.com>
    Acked-by: 's avatarSimon Glass <sjg@chromium.org>
    31e2141d
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