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-: Welcome back.

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Let's try and do an exercise to tie everything

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that we've learned up until now together.

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We're gonna create a password checker.

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Now what we wanna do is to create some sort

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of an input that we're gonna ask.

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So we're gonna use the input function

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and here we're going to ask for a username.

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Then we're going to ask for another input.

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It's going to be the password.

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And then at the end with the input

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we wanna print

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something, the lines of password

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and then we'll have maybe the actual password in here.

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And it will say, is another variable here long.

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So what we wanna do is the password

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and then maybe the password length.

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So that, let's say we printed our username, Jay Jay

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and then we give it a password of secret.

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Well, we should print the password.

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Secret is

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1, 2, 3, 4, 5, 6

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letters long.

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Now, obviously we don't want to show or display the password

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maybe for security reasons.

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So we wanna convert this secret to 1, 2, 3, 4, 5, 6

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to stars.

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So your task is to convert

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these two inputs.

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And you know what?

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Let's also do a greeting where we say the username here.

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So we're going to say. Hey, jay jay,

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your password

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which will be marked in a star, is six letters long.

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Now, one neat trick here that you haven't learned yet

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and you might want to use here, is this, that you can do

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with strings.

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I can go star times,

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make sure that the star is a string

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multiply it by 10, and if I print this out,

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I get 10 stars.

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So you may want to use this functionality when

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we're doing this.

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All right, pause the video, give it a go if you can.

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Remember, the goal is to print the username

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and have the password blocked with how many characters

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the password is.

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All right, pause the video.

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If not, I'm gonna get going with the answer.

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So the first thing we're gonna try and do

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is I'm going to create two inputs.

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So the first one, I'm going to get the username

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gonna sign it to the variable username

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and it's going to say, what is your

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username?

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Then the second one will be the password and the password.

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Well, I'll say, what is your password?

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And although this is a simple example

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this is something that you will see with other big websites

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like Instagram or maybe Netflix when you're logging in.

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So now that I've stored this information into a variable

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I can use it, right?

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I can print

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and we'll do an F string to make our lives easier.

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So I've added the F here

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and what we'll do is this, we'll say username

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your

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password

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and we'll add the password here

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is,

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and then we'll

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add another variable here,

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which is the password length.

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Hmm. So how are we going to calculate that?

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Well, let's try something here.

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Let's see if I can use the length function

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and in here, do password.

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Let's see what happens here.

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What is my username?

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Let's go with Andre.

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What is my password?

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Let's just type in secret here.

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And I get Andre, your password.

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Well, I can't speak English properly.

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My password secret is six.

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Well, six what?

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Let's write six letters long.

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Awesome. So this is working because with an F string

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I can create or add a Python expression in here

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using the length password.

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But there's an issue here, right?

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We don't wanna actually print out secret.

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We wanna print it out in the star form.

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And this is a good discussion topping on readability

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of your code.

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Now, this is a simple example, but we can make this code

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a little bit cleaner.

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For example, we can break things down so

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that we'll have password

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length,

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we'll be length

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password so we're calculating the length.

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So this is going to store six or whatever the input

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of our password is, and it's nice and descriptive.

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It's easy for other developers to understand.

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And then in here, I can also

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have

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hidden password.

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And this hidden password will be the

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password length.

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And we're going to use that star

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string and multiply it by the password length.

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Let's make this a little bit bigger

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so that now our code can be understood well

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in an easier fashion.

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So we have the password length

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so we're gonna say username, your password, password

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but we wanna make sure that it's the hidden password.

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So we'll copy this over here.

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So username, your password

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we're gonna print out hidden password is

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and then we're going to copy password length.

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Now, I argue that this reads better

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because each line is doing something simple.

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And then finally, we're printing the output.

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And although this is a small, simple example

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this idea of readability and making

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and writing code that makes sense is an important concept.

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So let's see if this works.

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I'm going to click run my username, Andre, this time around.

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My password's going to be super secret.

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And look at that.

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Andre, your password, da, da da, is 11 letters long.

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Good job getting this far.

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Hopefully you got that.

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I'll see you in the next video.