Replacements for switch statement in Python?

I want to write a function in Python that returns different fixed values based on the value of an input index.

In other languages I would use a switch or case statement, but Python does not appear to have a switch statement. What are the recommended Python solutions in this scenario?

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你可以使用字典：

def f(x):
    return {
        'a': 1,
        'b': 2,
    }[x]

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如果你想使用默认值，你可以使用字典get(key[, default])方法：

def f(x):
    return {
        'a': 1,
        'b': 2
    }.get(x, 9)    # 9 is default if x not found

---

I've always liked doing it this way

result = {
  'a': lambda x: x * 5,
  'b': lambda x: x + 7,
  'c': lambda x: x - 2
}[value](x)

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