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Python Python Collections (2016, retired 2019) Dictionaries Dict Basics

Ali AlRabeah
Ali AlRabeah
909 Points
Posted by Ali AlRabeah
Ali AlRabeah
909 Points

Why is 3 the correct answer? I thought dictionaries didn't have an order.

Pertaining to this question:

You might need to open a Workspace or your local terminal for this one. With the following code:

test_dict = {"a": 1, "b": 2, "a": 3}

what value would test_dict["a"] return?

1 Answer

Steven Parker
Steven Parker
231,275 Points
Steven Parker
Steven Parker
231,275 Points

You're right that dictionaries don't have an order. But they also require keys to be unique, so if you load in more than one thing with the same key, only the last one loaded will be retained.

Ali AlRabeah
Ali AlRabeah
909 Points
Ali AlRabeah
Ali AlRabeah
909 Points

Makes sense. Thanks.