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Welcome back.

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Let's try a simple exercise, I want you to build a simple counter and this counter is going to count

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the items in our list.

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What does that mean?

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Well, let's say I have a list.

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And this is a reserved award who remember, it's an actual word in Python, so let's name it my list

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as a variable.

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And this list has one, two, three, four, five, six, seven, eight, nine.

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What I want you to do is using looping to loop over this iterable list and sum up the total of the list.

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Pause the video if you need to.

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Otherwise, let's see how we can do that.

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What I'll do is create a counter variable that will equal to zero to start off with, and then I'll

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say for item in my list, I'm going to counter.

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Equals counter.

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Plus item.

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And then at the end, I'm going to print counter.

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Let's see if this works, I'm going to run and I get 55, which, if my quick math is right, should

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be should be correct.

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Now, when doing this exercise, you may have gotten tripped up a bit.

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So let's think about this.

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Some of you may have made an error where you did the print here, but if you did the print here, you

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remember that it's going to get looped over.

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It's part of this code block because of the indentation and it's going to print as many times as there

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are items.

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So you have to make sure that the indentation is like this so that you get the total.

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The other thing that you noticed is that in order for you to keep a counter or a total of all these

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items, you had to make sure that you had a variable outside of the loop because the loop runs the code

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over and over.

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And you needed something on the outside that doesn't change because if you moved the counter to zero

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here, well, every time the counter would be reset to zero so that by the time we get to ten, counter

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would be zero.

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So you get zero plus 10, which equals 10, and then you'd get, well, 10.

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So you have to be careful here that the indentation.

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Is an indication of us looping and when you loop something and you want to keep a tally or total of

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something, that you have these issues of making sure that what you want to loop over is inside of this

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code block.

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But why you don't want to if you want to have some sort of information that's outside of this loop that

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you keep it like this.

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If you weren't tricked by this question, good job if you were, don't worry, it's all part of learning.

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I'll see in the next one, Bhabhi.