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In the previous video we built this function here which gets a phrase as input so a string and if you

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execute the function it will return of that version of the string.

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Now the output of the program that you are building in this section is going to ask for this phrases

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over and over again as in the form of user inputs.

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So we are talking about getting user input from the user.

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And since that is happening repeatedly, we have a hint here that we are talking about a loop and sees

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this loop,

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so when the user enters \end the loop ends with that string that means we're talking about

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a conditional loop that makes us think about while loops because a while loops work on a condition basis.

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So let's say the while loop will run all the time so it will ask for user input. Input(say something:)

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a colon and make some space early just for decoration.

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So what happens if the user enters some input.

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Well first we want to check if that input,

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if that user input is actually the special string end.
If that is the case we want to break the loop.

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Else

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what we want to do otherwise.

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So you so those sentences there that they looked like a list.

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So it was several of them.

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That means we were talking about having a bunch of items and when you think about many items you think

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about the list.

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So maybe we want to store those phrases that the user enters in a list.

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How can we do that.

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What we can do that by starting with an empty list outside the loop.

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So python will execute the function definition.

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This we don't need it anymore because we just used it when we tested the function.

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So once the function definition is read by Python.

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We are not calling the function here.

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We are going to create an empty list and then start the loop.

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The user will be prompted with a message.

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If a string that the user enters is this we're going to break everything.

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So the loop will end. Else if that string is not what the user entered.

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Else we want to

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append the user string so user input into the results list.

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So at the end of the loop,

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so I unintended here.

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This is after the loop terminates which happens only when the break happens.

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So when the user enters this. After the loop terminates

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we're going to have a list with lots of data.

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So prints results.

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How are you.

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Weather is good, and end. And this is what we got.

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Okay.

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I know these are the streams that the user enterd.

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So how can we get the actual strings?

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Well that is very easy.

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Here we are spending to the list the row strings that the user entered.

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But we have a function that can convert those strings into sentences.

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So let's use that function so we are going to append the output of the function, to get the output you

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need to call the function. To call the function you need

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an input for the function, the input here is the user input.

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Just like that, execute again.

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End and we got this output as we expected.

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So we are making good progress.

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However we don't want a list output here.

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We just want a string output without those square brackets.

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So how can we actually merge or concatenate all the strings to make a single text as a string?

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Let's do that in the next video.