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Quite like every primary language, sea contains a number of key words that are reserved by the language

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itself or its own operations.

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Those key words cannot be used for any other purpose other than what the Python designers have used

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them and defined them for.

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To, for example, you can't take a reserved keyword and use it to declare a variable or to create a

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class or a function.

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If you do, you'll get an error message from the Python interpreter.

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First, have a look at some examples of good here.

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And I have a secret set that I'm using the Sony version of the Python language.

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You can see I'm using version three point seven of C Python here.

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And it also appears down here in the shell of brought up in the browser in one of the tabs, this file

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here, which is one of the library files it will be using in a later part of this course.

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And you can see that some of the words that appear in the code are highlighted based on the theme that

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I've selected.

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Those letters appear bold, kind of, I guess, reddish type of color.

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And these are indicated as language or python reserved keywords.

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Other words, such as time, for example, are also important words.

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In this case, time is the name of one of the modules that are used are being used in this sketch,

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but not in this script.

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But they're not Python reserved words.

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These are words that are used by developers at a later time to create something like, in this case,

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a module.

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You've got some other words, such as this one here, which is simply a fireball.

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In this case, it's a constant defined inside the code and there's plenty of those.

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So let's have a look at some more keywords you can see here.

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Class got its own color, like Dave.

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You can see both of those are reserved keywords.

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And Tony has got a specific way of highlighting these reserve key words in the code.

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And those look different to other keywords, such as Moad, for example, which are defined by the developer

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and not reserved by the language itself.

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So if you're wondering which are the reserved keywords in the C language, then you need to look at

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the documentation and brought up the documentation.

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The relevant part here in my browser, I'm looking at Python three at the lexical analysis page.

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Scroll down a little.

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You'll see right here there's a list of reserved keywords or any other keywords cannot be used by anything

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else.

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Now, if you do use those keywords for something else, let's say, for example, let's pick the keyword

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and and let's see if we can try and create a variable such as this.

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Right.

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If you can see that even in the show, Thawne has highlighted the keyword and as a reserved keyword.

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And of course, I got an error message.

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It doesn't know what I mean by this.

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If I just say A equals three, on the other hand, no problem at all.

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I create the variable and I assign a value to it.

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All right.

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So I'm going to leave it at this.

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Just remember that there are particular words in Python that you cannot use for anything other than

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their intended purpose by design of the language.

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And those are the three key words right here.