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[MUSIC]

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Hi, I'm Craig, and I'm a developer.

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This course is going to introduce
you to the wonderful programming

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language, Python.

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There are absolutely no prerequisites for
this course.

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This is intended to be the beginning
of your Python journey.

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It's gonna be awesome.

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I'm excited for you.

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Python is such a wonderful
language to start with.

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It's been designed to be clean and
easy to read.

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If you're coming from
another programming language,

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you'll find the simplicity of
this language just delightful.

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If this is your first programming
language, you're in for a lot of fun.

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You'll get the opportunity to think
in ways that you've most likely

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never thought before.

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You'll challenge yourself to grow,
learn, and create in new and fun ways.

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Python is a general purpose language,

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which means it can be used to
build just about anything.

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The US government uses Python
to do statistical analysis and

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data visualizations.

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Spotify, Evernote, and
OkCupid rely on Python for

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personalized recommendations and
other artificial intelligence-based tasks.

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Disney, Pixar, Lucasfilm, and

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others use Python to provide more
realistic effects in their movies.

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Large familiar websites like YouTube,
Instagram, Reddit, Pinterest, and

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even the Onion lean on Python.

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You can use Python for
face and speech recognition.

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You can control robots and shoot lasers,
send an email when your doorbell rings,

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and just about anything you can imagine.

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So what do you say we get started
learning this incredible language.

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Oh shoot, wait a second.

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Before we get too excited, and I go too
fast, I'd like to take a moment and

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let you get familiar with
your learning environment.

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There's speed controls
on the video player.

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You should totally feel
free to speed me up or

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slow me down to your heart's content.

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If you miss something I said, please,
feel free to scrub the video back and

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make me repeat myself.

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Now, unlike a typical in-person classroom,
here at Treehouse,

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you are in complete control
of your learning session.

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Attached to each video,
there are detailed teacher's notes.

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I'll do my best to point out when
there's something in there that you just

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have to see.

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But try to get in the habit
of checking that area for

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juicy bits of additional knowledge.

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Another thing I want you to remember is
that you aren't taking this course alone.

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Although they probably aren't
sitting right next to you,

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many of your fellow students
are taking this course right now.

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And chances are they'll be having many of
the same emotions that you're bound to be

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experiencing as you pick up this language.

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Please make use of the community.

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It's amazing, and you're part of it.

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It's yours.

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If you have a question, please ask it.

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You'll be surprised how quickly you'll
receive a friendly and helpful answer.

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And also, a great way to make your
learning stick is to explain a concept or

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a solution that you just learned.

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You'll probably surprise yourself with
how quickly you'll sound like a pro.

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I'll bug you more about
this as you progress.

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But please make sure to
check out the forum and

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hang out with your fellow students
answering their questions.

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It's a win-win.

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I'll pop in there too quite a bit.

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And there's also an amazing team of
moderators who are here to help.

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We should talk a bit about what
learning a programming language

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is most likely going to feel like.

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I'd love for you to approach this journey
much like you would when you attempt to

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learn a foreign language.

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There are going to be a lot of new
terms and concepts introduced.

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And I want you to not stress about fully
understanding everything all at once.

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Just like you wouldn't expect to be fluent
after taking your first Spanish class, you

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shouldn't expect to be able to understand
all the code you see immediately.

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Learning takes practice,
both in Spanish and Python.

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[LAUGH] Spanish speakers are typically
more forgiving than computers.

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But just like in your
hypothetical Spanish class,

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you can expect it to feel super
good when you can actually

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communicate your thoughts in your new
language, and we'll get there soon.

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So do this for me.

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I want you to immerse
yourself in the language.

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I'll point out exactly what
I think you need to focus on

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at this part of your journey.

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But again, please don't worry
about knowing everything.

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Remember, this is a journey,
and you are just now beginning.

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As you progress,

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you'll start to notice that you're picking
up quite a bit just through immersion.

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In this course, we're going to explore
the basics of the Python language.

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All of the concepts that you'll learn here
are common in just about every programming

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language that I can think of.

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By the end of this course,

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you'll build a ticket purchasing
application for an event.

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There will be loops, logic,
error handing, and even some math.

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What you're looking at here is called
a command line application, and

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this up here is our online
code editor called Workspaces.

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In just a short bit, you're gonna be able
to write this code from scratch, wow.

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Future you is pretty amazing, right?

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So what are we waiting for?

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Let's go get you up and running in your
very own online code editor, Workspaces.