Python for Absolute Beginners Transcripts
Chapter: Using external Python packages
Lecture: Demo: Adding color output with colorama
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It's time to start using our Colorama.
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Lets go and run this really quick.
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Here you can see we've got rock, paper, scissors version
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here's the header.
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Maybe we want the header to be like a cool pink
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or something like that.
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And yet here it's just gray.
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Maybe we also want to ensure
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that the background or the default color is white.
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For example, if I come over to my prompts
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my terminal here
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you can see that my normal colors are yellow.
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And if I were to type python3
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everything's yellow.
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So for example, if I run this program
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I copy this from there.
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I'm going to make sure I use the Python
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from that virtual environment to run this file.
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Everything is now yellow.
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It'd be nice to have a baseline color
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for what we're doing here.
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So what we can do in the beginning
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is we can just start, right at the top of the file.
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We can just print out some kind of text or something
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using Colorama to make it that color.
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So the way we do it is say colorama.
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or dot, and then whatever color we want.
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Let's go with white.
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Now if I do this over here and run it
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see everything's yellow.
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But as soon as I run it it's turned everything white.
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And as we work with it, it's just going to stay white.
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For now, okay?
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The program exits then it resets.
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So this kind of does a baseline color for us
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and what else do we want to do?
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Let's go over here, I'm going to copy this.
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I'm going to use it a lot.
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I said we want to have the header have a color, right?
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Let's go over here and say print or dot.
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What do we want here?
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Magenta, maybe?
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Magenta's going to be good enough.
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Now we can do it like this.
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We can come down here and say that plus text
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but this is so big
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I'm just going to put it like this.
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And we want all the stuff to be here.
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And then we got to put it back, colorama.Fore.WHITE.
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Okay, well one thing that we're doing a lot of
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is saying colorama.Fore.that.
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Now here, normally I like this format.
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I like this format because it's really clear
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where all this comes from.
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But we're going to be combine it with a lot of text
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so we can do it, import a different way.
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Let's roll this back a little bit.
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Notice there's an error.
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We come over here and say, From colorama import,
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the stuff that's in there
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which is all those things.
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And just say for, that arrow goes away.
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If you don't type this by the way
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PyCharm knows that you should have typed it
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so we go over here and we can hit Alt + Enter
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and it says, Do you want to import this?
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You want colorama.Fore?
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Yes I do, and it'll just write that line
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as if we had done it up there.
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All right, so that's a lot of talking.
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Let's see what we're getting here.
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this up and try it again.
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Check it out.
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We have our color version up here
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of our external libraries
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not really sure that I'm digging this V2 thing
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so let's do it like that.
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Cool, Rock, Paper, Scissors, this edition
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then if I type this
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we're not quite seeing anything yet are we?
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So let's go back up to the top.
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Our player's logged in.
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The log, it goes to a file.
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It doesn't make any sense, I tried to make it color
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it won't respect that anyway.
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So the next thing to do is
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let's go over here, let's go down here
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let's, for all the errors, give them a color, huh?
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Come down here and say Fore.LIGHTRED or RED.
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There we go.
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So let's go and see if we can get
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a color here that's not so good
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or a output that's not so good.
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So my name is Michael, I want 99, try again.
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Notice we didn't reset it.
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So let's see, we could do that.
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Fore.WHITE again.
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There's some cool coding techniques and stuff
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that we could use
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little data structures that we could come up with
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to have that automatically reset
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but for now let's do it like this.
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It's going to be Michael and 99, try again.
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See how easy this is?
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For us to see what's happening?
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Okay, let's see.
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For the round we're going to roll these things.
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player_1 rolls this.
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Let's make it really clear who's rolled what
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so for you the player what are we going to use?
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Let's go with some yellow.
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For your opponent let's have a light blue
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and then let's reset it like that.
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Keep going.
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And by the way, I'm running
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because it's more clear, the color stands out more
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but you can run it in PyCharm and see those colors.
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You see them down here for example.
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Do 99.
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It comes up but it's not quite as clear
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because the gray background.
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So let's go and keep running up here.
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Michael, 99, no, let's play again.
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I'm going to throw some sponge, love some sponge.
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Michael rolls, roll sponge?
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Computer roll scissors.
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This should really stand out here.
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Who takes the round
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maybe even the scores here we could do some work.
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Fix the S, and here we can put
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we don't want to log that for thing
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so we want to put that here on this output.
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We could do this
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we could even say something like this
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we could say four equals the four there.
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I could say this if winner equal to player_1
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else that means you've lost
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so Fore.RED, light red, something like that.
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Let's try that here, I think that'll be fun.
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So come down here, I'm going to be Michael.
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I'm going to throw some scissors
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oh, we didn't put it back, did we?
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Look, I won the round!
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We could do it like this.
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White and the same message there, that should do it.
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Okay, try again.
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Michael, throw some sponge.
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Computer takes the round
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I'm going to throw some air, some more air
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aw man, that computer is tough.
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Let's try two, three, three, it was tied.
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Computer takes the round.
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I'm telling you, this computer has got my number
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I cannot beat this thing.
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Seven, two, yes!
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I've taken a round!
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Remember it was kind of hard to scan this
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you had to read over it, What's going on? and so on.
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We're also going to improve this
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so it doesn't take up so much space later
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but for now we're getting our color there
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and then, yeah, we're pretty much done.
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Let's do one more thing here
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for this color here.
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Let's put, yeah we don't need to do it.
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We could print out some stuff
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but we'll keep it there.
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Again we'll say Fore equals
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let's get the same little test here.
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If overall winner is that
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and then we just want to do Fore plus.
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And let's reset it, Fore.WHITE.
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Actually, careful, we don't want to log that.
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Not sure what'll happen if we put that in the text file
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but it's probably isn't good.
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So here, let's play one more round
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take it all the way through.
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Michael, I'm going to play some sponge
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because that's my favorite one.
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They played scissors which cuts the sponge
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aw man, I cannot win.
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All right, I took a round with some rock
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do some more rock.
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Getting close, yes!
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I take the round, and I win the game, incredible!
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But down here we have that
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coming out of the bottom.
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Hopefully you get the sense that
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just this little bit of extra color
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really makes this game easier to play
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and I think a little more entertaining as well
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and it was all made possible by Colorama.
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So Colorama is this public thing out on the internet
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we're able to download it and install it with pip
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into our virtual environment here.
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Even expand it and probably see somewhere
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the packages are installed.
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Yeah, there's Colorama toolkit and others.
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But you don't mess with that, you just leave that alone alright?
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Same thing over here.
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packages, we don't want to mess with these
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but you can see that they're there.
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The best way though
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is to go over here and say pip list
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and it'll show you what's installed
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what version and so on.
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Alright! Very cool, we made our app better
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by using one of these external libraries.
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Well that's a start.
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We used one.
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There's 215,000 plus more to go explore
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see what cool stuff we can do.
