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So previously we managed to check 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 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 from the news API regarding that company.

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So now that we've got the top three articles from the news API,

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now we're onto step three

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which is to use Twilio to send a message with each article's

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title and description to a phone number.

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The first step is to create a list of the first three article's

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headline, and description using list comprehension.

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So what we're aiming for is a single string that says something like this.

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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 going to 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 after something,

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something, something, something. You can see this is the first title

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and this is the first description.

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So its basically the title of the article and also a brief description of what

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the article is about. That is what we want to get messaged 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 and each of those

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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 going to use an f-string in order to insert these relevant parts.

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So the article title is stored under the title key and the description is stored

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under the description key.

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So we can simply use that as the key to tap into this article.

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Notice how we've got a set of double quotes outside to create our string.

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If we have another set of double quotes to specify the key,

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this is going to be a bit confusing for the code interpreter.

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So let's change that to single quotes instead to make it actually work. Like this.

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Now, next is the article description.

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So this is going to go inside another set of quotes and also it's going to go

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inside a set of square brackets. Like this.

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Each of the new items that's going to go into this new list is going to be a

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string that's comprised of the article title and also the article description.

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Now we can save this new list into a formatted_articles list, like this.

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So that's to-do eight completed,

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and now we're going to try and send each article as a separate message via

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Twilio. 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 from the Twilio library,

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right?

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And make sure that we actually have this installed

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if it's not already installed, and get rid of the red underlines. Next,

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we're going to get our account SID and auth token from Twilio.

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So I'm going to copy my account SID and put that over here.

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Right?

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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 by creating it from the client class. Down here, at

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the point where I want to send my message,

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I'm going to create a new client from the Twilio client class

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and this is going to be comprised of my Twilio account SID and also my Twilio

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auth token. Finally,

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we can create our message and send it to our own number,

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right?

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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, and then we can

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create a message and send each of those one by one.

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So the body is going to be each article in the formatted articles.

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Now the

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from number is going to be our Twilio virtual number and our to number is going

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to be our actual phone number. 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 going to 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 and each of the three articles are being

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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 is having a little emoji to show whether

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if your stock is up or down and also showing a rounded percentage. To do that,

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we need to figure out whether if the stock was up or down and we can work that

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out by looking at the difference. If instead of using the abs here

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which is going to get rid of our negative and positive,

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if we had instead used an if statement to check if the difference is greater than

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zero, so it's positive, then we can create a variable called up_down

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which starts out as none. 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 just treated as strings in our code.

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Otherwise, if it's below zero, then it will change that to a down emoji,

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Right?

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Like this. And as always,

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you can always search 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 going to put it right here at the point where we do the if checking.

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And in addition,

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I want to change this diff_percentage so that we actually around it to the

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nearest whole number.

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With the rounded diff_percentage and also this up_down,

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we can now format our message so that it says the name of the stock

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...

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and then whether if it's up or down,

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and then the diff_percentage, and finally a percentage sign and also a new

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line. So now if I run this again,

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you can see that this time

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these messages come complete with the stock name,

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the movement percentage, the headlines and the brief.

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So there you have it.

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I'm sure you can think of even more improvements to this program.

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

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then I'm sure you'll think of even more ways 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 so that we can all admire

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your hard work.