def reel_list_to_int(self, reel_list):
        # reverse the list so it's in normal order
        reel_list.reverse()
        output = ""

        for item in reel_list:
            if type(item) is int:
                if item == -999:  # if any reels are unknown, then our int
                    return -999  # is unkown too.
                else:
                    output += str(item)
            elif type(item) is str and item.isdigit():
                # Just in case we have an number that's a string
                output += str(int(item))  # ensure no leading zeros
            else:
                output += "0"
        return int(output)
Converts an list of integers to a single integer.
dataset/ETHPy150Open missionpinball/mpf/mpf/devices/score_reel.py/ScoreReelGroup.reel_list_to_int