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Instructor: Now that we've tested our code

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and we've managed to get it working locally,

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the next step is to put our script online

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so that it can be run on schedule

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and we don't have to manually open up Python

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and run it every morning at 7:00 AM.

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How do we do this?

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Well, we're going to use PythonAnywhere,

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the same service that we used before

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when we created the automatic birthday wisher.

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Now, the first thing we're going to do is, of course,

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log into the service

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and we're going to delete all of our previous files,

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so that includes the letter template folder

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and also the main.py and the birthday.csv.

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Now instead of the previous main.py,

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we're going to upload our latest main.py.

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So let's go ahead and locate this in our computer.

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And then we're going to upload it to PythonAnywhere.

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There you go.

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Now let's open up this file and click Bash console here.

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So that's going to create our console down at the bottom,

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and once it's ready like this,

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we can enter the command to run this code.

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So it's python3, and then it's the name of our file,

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which is main.py.

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And because it's directly within my user's folder,

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I don't have to specify a file path to it.

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Now, I don't recommend to have your main.py nested

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within other folders because it's going to make this

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a little bit more complicated.

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So as long as you've uploaded it to the same place

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that I have, just straight after your username,

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then we should be able to run this line of code.

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And we can test out whether if this code now works

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when it's being run from PythonAnywhere.

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Now what you'll see instead of the message status, however,

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is a exception, and it's a connection error.

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And the connection error tells us something

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about this api.twilio max retries exceeded with url.

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So if we go ahead and highlight that, which we'll copy it,

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then we can paste it into Google

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and figure out what's wrong.

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The first post you can see is a post

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from Help at PythonAnywhere.

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And they've created this post to tell you

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how to get Twilio to work

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on free accounts with PythonAnywhere.

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As they say, if you're trying to use Twilio

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on a PythonAnywhere free account,

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you're going to run into an error

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that looks something like this,

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which is exactly what we got.

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And that's where Google Search picked it up

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to show us this article.

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The reason for this is because the Twilio API

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basically needs to be told how to connect

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to the proxy servers that free accounts use.

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When you have a paid account on PythonAnywhere,

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you have an actual address to your dedicated server,

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but when you only sign up with a free account

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like we have here, we only get a proxy server.

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So we need to change the code a little bit

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in order for it to work.

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Even though we are actually using the latest version

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of Twilio, from testing I found

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that this code doesn't seem to work for me.

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Instead, we have to use this version of the fix

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that they've specified here.

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So the only difference from their version of the code

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and what we have here in our main.py is three lines of code.

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First, we have to import this class called TwilioHttpClient

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from the Twilio module.

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So let's copy that and paste it below our previous lines.

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Now in addition, we have to create a proxy client

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with the TwilioHttpClient class

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that we just imported just now.

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So we're going to put that in our IF statement

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when we're about to create our SMS message.

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The last step is,

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where we have our client class being created,

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we have to set this HTTP client parameter

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to the proxy client that we created just now.

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That's going to go right here.

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The rest of the code, we can leave as is,

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and we can simply hit Save to update that code.

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Now once we've typed all of that code,

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you can see we get an error in here.

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It says undefined name os,

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and that's because this os actually comes from an os module,

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so we should import that in order for this error to go away.

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So let's hit Save again,

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and you can see we are now free of warnings and errors.

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We're now ready to go into our console

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and to run the same command again, which is python3

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and then it's the name of our file, main.py.

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So now when we hit enter,

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you can see we get back the message queued,

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which comes from this print statement,

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and that's because the status of our message

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has now been queued.

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And you can see I've now received the message from Twilio,

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and this is, of course, because my main.py was run

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on the PythonAnywhere servers

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instead of from my local computer.

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So now that we've confirmed that this works,

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we can now finally go back to PythonAnywhere

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and go to the Tasks section in order to set up our task.

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Now here, I've still got my previous task set up

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when we created the automatic birthday wisher.

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Now, because I'm demoing this

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with a free PythonAnywhere account,

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I can only create one scheduled task.

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If I start paying them, then I can schedule

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as many as I want and they never expire.

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But because we're just learning here,

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I don't want you to commit to a paid account

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just to be able to see how it works.

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So we're going to use the same scheduled task.

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Now, if you don't have any task scheduled,

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just go ahead and create one,

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and the command is going to be the same.

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It's python3, and then it's running our main.py.

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So the same command that you entered previously.

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And we're going to set the frequency to daily,

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and it's going to run at 7:00 AM every day.

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In order to test this, I'm going to change the time

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from 7:00 AM to the current time.

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So the current server time is registering as 10:01,

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but, in fact, I'm actually seeing 02,

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so I'm going to change that to 10:03,

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and then hit the check mark.

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And now I'm going to wait patiently to see

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if that is going to be triggered automatically

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from the scheduled tasks,

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and I get the SMS sent to my phone.

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And there you have it.

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This is now being sent to me from Twilio

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because we made the API call,

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but it's being sent because I've got this scheduled task,

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which is calling this command in order to run our main.py.

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And it's being done at a time which I've specified,

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which in fact I want to happen

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at, probably, 7:00 AM in the morning.

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Now, notice that this is UTC time.

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So if you want to convert the UTC time to your local time,

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so at the moment we're on British Summer Time where I'm at,

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then you can type this into Google

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and change this to whatever time zone you are in.

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And that way you can figure out what time UTC is

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relative to your local time.

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In my case, it's just one hour behind.

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So if I want this to run at 7:00 AM my local time,

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then I have to change this to 6:00.

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And now that's going to run every day at 6:00 AM

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without me needing to do anything.

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And I'm going to get my notification on time

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if it's going to rain.