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Welcome officially to the third section. And now

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the fun really begins. Now we're starting to take

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a sort of a deeper

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step or a bigger step into the world of Python programming

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because here we're going to be talking about control flow

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and loops.

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Now. So far in the previous two sections, we've talked about strings and integers

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and the programs have been pretty for the most part basic, right?

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You can either maybe have an input or we provide

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ourselves with some string and integers and then we say,

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OK, I'm going to do this and do this and do that and then simply print, right?

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But now with control flow and loops,

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what if we wanted to say? OK?

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If something is this,

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then let us do that.

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But if something isn't this thing, let us do something else.

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This is control flow and loops. Also.

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What if, for example, we had like a list,

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OK? It could be a list of names, a list of books, a list of passwords, right?

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And then we wanted to go through each password in that list

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and do something,

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right?

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Maybe we wanted to take each password and encrypt them,

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or maybe we want to take each password and then

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check to see if the password is actually strong or weak

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depending on several kinds of conditions.

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We're going to cover that in this section.

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This is going to be one of the major sections in

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this particular course.

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And I'm really excited to teach you about control flow and loops.

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Let's begin.