extract-dtb.py 文件源码

def get_dtb_model(filename, min_length=4):
    """ Finds the first printable string in a file with length greater
        than min_length. Replaces spaces with underscores.
    """
    with open(filename, errors="ignore") as f:
        result = ""
        for c in f.read():
            if c in string.printable:
                result += c
                continue
            if len(result) >= min_length:
                return result.replace(" ", "_")
            result = ""
        if len(result) >= min_length:  # catch result at EOF
            return result.replace(" ", "_")
    return None