["python","switch-statement"]
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?
Python 3.10 (2021) introduced the match-case statement, which provides a first-class implementation of a "switch" for Python. For example: def f(x): match x: case 'a': return 1 case 'b': return 2 case _: return 0 # 0 is the default case if x is not found The match-case statement is considerably more powerful than this simple example. Documentation: match statements (under the "More Control Flow Tools" page) The match statement (under "Compound statements" page) PEP 634 – Structural Pattern Matching: Specification PEP 636 – Structural Pattern Matching: Tutorial If you need to support Python ≤ 3.9, use a dictionary instead: def f(x): return { 'a': 1, 'b': 2, }.get(x, 0) # default case