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Instructor: So previously we've managed to check

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the stock price difference between the day

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before yesterday and yesterday.

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And then based on when that different

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is over a certain threshold,

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then we trigger this bunch of code

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which actually fetches some news

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from the news API regarding that company.

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So now that we've got the top three articles

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from the news API, now we're on to step three

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which is to use Twilio to send a message

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with each article's title and description

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to our phone number.

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The first step is to create a list

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of the first three articles headline and description

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using list comprehension.

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So what we're aiming for is a single string

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that says something like this, Headline:,

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and then it's the actual article title.

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And then we've got our Brief

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which is gonna go on a new line,

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and then this is going to be the article description.

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You can see those parts in the articles that we printed out.

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For example, this first article here.

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You can see the title says Spartan Energy surges

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after something, something, something, something.

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You can see this is the first title

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and this is the first description.

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So it's basically the title of the article

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and also a brief description of what the article is about.

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That's what we want to get message to us.

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Now in order to use list comprehension,

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we first use the keyword method.

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So new_item for item in list.

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Now our list in this case is of course our three articles,

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and each of those items will be an article in themselves.

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And for each of those articles, we want to have this format.

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So I'm just going to cut that and then paste it in here.

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And then I'm gonna use an f string

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in order to insert these relevant parts.

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So the article title is stored under the title key

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and the description is stored under the description key.

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So we can simply use that as the key

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to tap into this article.

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Notice how we've got a set of double quotes

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outside to create our string.

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If we have another set of double quotes

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to specify the key,

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this is going to be a bit confusing

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for the code interpreter.

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So let's change that to single quotes instead

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to make it actually work, like this.

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Now next is the article description.

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So this is gonna go inside another set of quotes

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and also it's gonna go inside

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a set of square brackets, like this.

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Each of the new items that's gonna go into this new list

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is going to be a string

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that's comprised of the article title

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and also the article description.

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Now we can save this new list

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into a formatted_articles list, like this.

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So that's TODO eight completed.

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And now we're gonna try and send each article

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as a separate message via Twilio.

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Here's our Twilio SMS Python Quickstart,

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and we're basically going to replicate all of this.

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So first we're gonna import the Client class

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from the Twilio library.

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And make sure that we actually have this installed

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if it's not already installed

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and get rid of the red underlines.

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Next we're going to get our account SID

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and auth token from Twilio.

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So I'm gonna copy my account SID and put that over here,

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and also get my auth token from here as well.

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So now I can set up my client

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by creating it from the Client class.

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Down here at the point where I want to send my message

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I'm going to create a new client

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from the Twilio Client class.

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And this is going to be comprised

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of my Twilio account SID and also my Twilio auth token.

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Finally, we can create our message

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and send it to our own number.

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The body of the message is going to be each of the articles.

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So in order to send three messages,

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we can loop through our three formatted_articles like this

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and then we can create a message

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and send each of those one by one.

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So the body is going to be each article

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in the formatted_articles.

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Now the from number is going to be our Twilio virtual number

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and our to number is going to be our actual phone number.

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Once we've done all of that

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we can now test this and run it to see if it actually works.

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Now I'm gonna go ahead and hit run,

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and hopefully our messages will get sent.

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As you can see right now.

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So we've got our headline and our brief

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and each of the three articles

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are being sent as a separate message.

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That's pretty much the end of this challenge.

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Now you can of course, improve this even further.

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And one of the things I thought about

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is having a little emoji

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to show whether if your stock is up or down

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and also showing a rounded percentage.

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To do that, we need to figure out

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whether if the stock was up or down

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and we can work that out by looking at the difference.

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If instead of using the abs here,

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which is gonna get rid of our negative and positive,

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if we had instead use an if statement

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to check if the difference is greater than zero,

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so it's positive,

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then we can create a variable called up_down,

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which starts out as none;

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but if it's positive,

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then we can turn that into a up emoji.

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And remember, emojis are simply

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just treated as strings in our code.

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Otherwise, if it's below zero,

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then we'll change that to a down emoji,

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like this.

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And as always, you can always search

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for these emojis in Google and copy and paste them in

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if you don't have the emoji and symbols keyboard.

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But having taken away that absolute value function here,

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we're going to have to put it back somewhere else.

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So we're gonna put it right here

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at the point where we do the if checking.

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And in addition, I want to change this diff_percent

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so that we actually around it to the nearest whole number.

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With the rounded diff_percent and also this up_down,

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we can now format our message

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so that it says the name of the stock

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and then whether it fits up or down

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and then the diff_percent,

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and finally a percentage sign and also a new line.

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So now if I run this again,

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you can see that this time these messages come complete

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with the stock name, the movement percentage,

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the headlines, and the brief.

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So there you have it.

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I'm sure you can think

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of even more improvements to this program.

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And especially if you're somebody who actually trade stocks,

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then I'm sure you'll think of even more ways

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of improving this project.

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If you come up with anything interesting and fun,

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be sure to share it with the rest of us in the Q&A

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so that we can all admire your hard work.