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Now, we said that

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we are going to cover three kinds of sequences.

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So, we've already done strings and lists,

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but the third kind of sequence that I'm going to cover rather quickly are tuples.

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The reason that I'm going to cover tuples relatively

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quickly are that tuples are just like lists,

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except the difference between a tuple and

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a list is that tuples are what are called immutable.

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Meaning that after a tuple is created,

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it can't be changed.

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We're going to talk more about mutability later on,

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but for now I'm just going to cover how to create a tuple.

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So here, I create a list with three items,

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and to create a three-item tuple I would do something very similar.

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So, I would say myTuple equals,

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and basically I would take almost the same syntax,

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except I would replace the square brackets with parentheses.

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So, the first item is the string one,

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the second item is the integer two,

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the third item is the string three,

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and I have to close parentheses to say that this is the end of the tuple.

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Now, if I print out the type of my tuple run it,

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then I'll see that list or myList is a list and myTuple is a tuple.

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So, for the most part when creating tuples,

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then you can just use the same syntax that you use for lists,

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except replace these square brackets with parentheses.

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There are just a few exceptions where creating

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tuples is slightly different from creating lists.

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So, let's suppose that I have a list with 100 as its only item,

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and I want to create a tuple with one item as well,

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so I want that item to be 100.

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When Python sees this expression,

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it actually thinks that this is an integer.

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So, when I run my code,

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and then I can see that my tuple or

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this expression actually created an integer whose value is 100,

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and that's because Python was a little bit

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confused here because it thought that I was putting

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100 in parentheses to do something like change the order of operations.

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So, it thought that I meant to create an integer.

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In order to specify that I want to create the tuple 100,

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I just have to add an extra comma.

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And with that extra comma,

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if I rerun my code,

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then I'll see that my tuple is a tuple again.

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If I want to create a tuple with zero items,

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just like I can create a list with zero items,

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then I can just say,

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open and close parentheses with nothing in it,

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and you'll see that my tuple is still a tuple. Until next time.