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One other type of conditional structure in Python is the

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conditional expression.

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Let's make a working copy of conditionals.py, conditionals-working.py and we'll

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open up that working copy, and we'll go ahead and assign a couple of variables.

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Now, a lot of times, all you're doing with a conditional is something like this.

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if a is less than b, then V equals this is true, else, V equals this is not true and print v.

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You'll see this kind of a thing a lot in a lot of different languages.

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We save that and run it, say this is true, and if the condition is

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otherwise, save and run.

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It says this is not true.

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So, in Python, there's a much, much easier way to do this.

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You can simply say v equals this is true if a is less than b, else, this is not

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true, And so that takes all

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of this, and it basically puts it in an expression.

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So delete that, and I save and run, and we get exactly the same results.

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Make that a 0 and it'll say this is true, and this is true.

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So, all we've done here is we've taken that whole if-else structure and we put

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it in an expression.

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And Python has several of these, and we'll cover these throughout the course,

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but it's a convenient shorthand, and you'll notice that it even reads well.

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v equals this is true if a is less than b, else, this is not true

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And so this part here is what makes it a conditional expression.

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You have if, and you have the expression that evaluates true or false, and else,

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and then a second value.

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So, without all of this, you would simply have v equals this is true,

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and with all of this, you have a conditional expression, this is true or this is not true,

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depending on the evaluation of this conditional expression.

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So, that's a conditional expression in Python, and it's a very convenient

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shorthand for a lot of cases where you would otherwise use four lines of if

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and else.