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So you learn that a for loop iterate through a container which could be a list, or a string, or a tuple.

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And the loop will terminate when the container is exhausted.

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So for example it prints out one, two, and three.
And when there are no more items

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the loop ends.

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So a full loop runs until a container is exhausted and a while loop a while loop runs as long as this

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condition is true.

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Let me execute that and see what is going to happen.

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So you will see that 1 is being printed out all the time.

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So if I scroll up here I will not be able to find where the starting point was because there's a million

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ones now being printed out there every split of a second.

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So what's going on here is that a while loop, while is a keyword, and then that is followed by a condition.

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In this case the condition is that A is greater than zero which is true.

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So A is actually 3.

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That means this condition is true.

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And as long as this condition is true, this will be printed out, so under the while loop you can have

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as many actions operations as you want.

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For example let me interrupt this with control C on your terminal.

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And then add another line here print2, save, execute.

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So 1 2, 1 2, 1 2, 1 2, 1 2

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is being printed out.

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Okay I'll interrupt that.

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Not the rate that these numbers are being printed out

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depends on your computer.

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Processor speed.

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So the faster your processor, the faster you will get these action here,

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these operations being executed.

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Now of course this will always forever be true because it's a just a static declaration of a variable

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here.

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So no one is changing it here, therefore of a condition will always be true.

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You can see inside Python when you check something like 3 is greater than 0 you get true.

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So this is basically while True, and you will sometimes see it like that.

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So just delete the first line.

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Exit here, execute the code again.

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So again the same thing happens because true is always true.

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However, this is not how while loops are used in real world.

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It's meaningless to check if true is true and print out something all the time.

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So let me go ahead and explain while loops in a better example in the next video.