All language subtitles for 17. Accessing Items in Dictionaries

Do dictionaries have the same index system as lists and strings?
1

Let's find that out.
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I have this dictionary here on my Python Shell.
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Student grades.
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So let's try to get the second item maybe.
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Nope, it's says KeyError: 1 which means that the dictionary doesn't have a key named 1.
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So what keys does the dictionary have?
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Maybe the "Sim" key.
8

Yes, so dictionaries instead of integers they have keys as indexes.
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So a least would be access, the items of the list would be accessed via integers which start from
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zero.
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An end to the last item of the list, the index of the last item of the list. With dictionaries
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this is different as you can see and this is actually what makes dictionaries a dictionary.
13

Let's see another example of how useful this is.
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Let's say you have this dictionary English the Portuguese.
It's a real human dictionary.
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You have some words there.
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Let's say "rain", "chuva" in Portuguese and "sun" will be "sol."
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Sorry I've got a typo there, quote.
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So now if you want the Portuguese version of sun, you write that and that will give you that version.
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So having integers s indexes in this case would be very useless.
20

So every use case has its own data structure to be used in Python.