Baseball Game LeetCode solution in Python

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class Solution:
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    def calPoints(self, ops: List[str]) -> int:
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        temp = []
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        for i in ops:
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            if i != "C" and i != "D" and i != "+":
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                temp.append(int(i))
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            elif i == "C":
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                temp.remove(temp[len(temp) - 1])
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            elif i == "D":
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                temp.append(2 * temp[len(temp) - 1])
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            elif i == "+":
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                temp.append(temp[len(temp) - 1] + temp[len(temp) - 2])
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        return sum(temp)