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Joined 2 years ago
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Cake day: June 30th, 2023

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  • true, and i can’t think of a legitimate case where it would have tripped me up. but if someone, a novice perhaps, wrote

    def some_func(foo, bar=[1, 2, 3]):
        bar.reverse()  # for whatever reason
        print(bar)
    
    some_func('hello')    # output [3,2,1]
    some_func('hello')    # output [1,2,3] 
    

    i think they would be within their rights to be surprised that calling this function twice has different results. that’s what i was surprised by; it feels like bar would be re initialised each time with a scope of the function but apparenty not