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One last thing that I want to show you is how you can really use a style sheet for your Jupyter notebooks

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because to be honest, I think opening this Jupyter notebook in this browser looks a bit ugly.

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So we have this a white background, which is quite bright and I don't really like it so much.

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But in the following of the course, I will, of course, continue just with the standard Jupyter notebook

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in the browser so that everyone can follow along and has the same visuals as I have.

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But if you don't like this style of the Jupyter notebook, I want to show you something.

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So I open up a file that I have prepared previously, which is called notebook, underscore style.

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So it doesn't really matter.

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You can just open up a new notebook by clicking here.

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New notebook.

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And here we are.

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And what I wrote there is two command pip space install space Jupiter themes, and this installs something

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called Jupiter themes.

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So you write this and then run it using Shift Enter, and then it is still running.

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Now it gives you the output, which basically says for me that it's already satisfied because of course,

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I have already installed it.

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Then you go here and add a new cell that clicking on the plus and you type pip install minus minus upgrade

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Jupiter themes, which updates the Jupiter themes.

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Maybe this is not necessary, but it's better to do it.

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So once again, it's tells me that all of this has been done already, and now we can use the actual

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commands of Jupiter themes by writing exclamation mark JT for Jupiter themes minus L.

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This is just a command which gives you all of the available themes that we can choose.

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And, for example, a theme that I like quite a lot is called Monarch.

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So I write exclamation mark j t minus T monarchy shift enter.

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And here's something that could happen to you as well.

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We have an error that we do not have the permission and to solve this error.

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What we have to do is we have to restart Anaconda and run it as an administrator.

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So I save this, I save this and then I just basically, yeah, we can just close it and maybe even

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close.

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The Anaconda Navigator quit.

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Yes.

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And now run it as an administrator.

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So let's wait again a few seconds until Anaconda started.

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So I'm just doing this because I want to show you that whenever you want to really install something

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and change something, you must run Anaconda as an administrator.

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However, if you're just writing some code and this is not necessary.

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OK, so here we are again.

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Let's sorry.

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That's run Jupyter Notebook.

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And you can see now it finally or it works already.

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So you see the style looks different, so it has worked.

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So let's open up again our notebook style and go here and you see how the style has changed.

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And this is because we have run JT one.

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Okay, and you see, this time it doesn't give us an error message.

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You can, of course, also choose another option.

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Like, I don't know, let's just test some of these or let's use the first one, just crash and to make

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it work.

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You click on refresh.

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And then you see, once again, a different style.

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So if you don't like all of these or you just want to have the same style as I have, you just right

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acclamation.

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Mark J.

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T minus are to restore the default and then you just reload and everything is back to normal.

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All right.

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So this was just something that I wanted to show you to prove to you that you can really change the

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visuals of this Jupyter notebook and also make it look more beautiful.

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But now we really go back to the initial style.

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And so in this way, it is most accessible for everybody.

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So here we can also reload this, OK?

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Here we are.

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And another thing that I want to show you is that, for example, you can click on running and then

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you see all of the files that are running.

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So currently we only have the notebook style file running.

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But for example, if I open up the old file, our first notebook and I run the whole kernel restart

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and run all.

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Then.

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We have now two notebooks running, and this is even true if I close this one and refresh.

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Still, both of them are running, which means I can now go here packed files and reopen them.

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And so they are still open.

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And if you want to close the file, so or better to say if you want to close the kernel, you can click

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here on shut down kernel or you just click on closed to whole browser and then everything is closed

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once you close or so Anaconda Navigator quit.

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Yes, and everything is closed.

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So this was a bit more information about Jupyter Notebook and in the next lectures, I want to explain

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to you a bit more about Pi Charm and some other text editor that you can use to write Python Code and

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also Jupyter notebooks in a more comfortable way.