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Once you start working with Python more and more chances

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are you are going to outgrow using Jupyter Notebook, and you're

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going to start using your command line a lot more.

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Now, with that comes a Python shell, and you can write all

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sorts of Python stuff in here if you wanted to.

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We can say 'print(Hi")'.

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'def func_name()' doesn't really do auto indenting,

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so we've got to indent that for us for ourselves.

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'print("Hello")',

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and then we could run 'func_name'.

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Now, that's not bad.

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This is kind of boring to look at, but we can experiment

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with some Python in there, or if you want something that's

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a little more like Jupyter Notebook, but on your command

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line, you can install this thing called 'ipython', and you

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can do that with 'pip install

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ipython', which I think actually I already have. 'pip freeze ipython'.

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I should have it. I use it a lot.

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Not 'pip freeze',

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I meant 'pip show'.

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And yup, I am using IPython7.11.1.

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So you can do 'pip install ipython'.

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That will get you the latest version of Python or IPython,

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rather. An IPython is just interactive Python, and you can

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type 'ipython' instead of typing 'python',

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and this will give you an interactive shell.

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Now you can already see this looks a little bit different.

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And let's just make some room here, and let's do the exact

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same examples we did in the regular shell.

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'print("Hello")'.

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So we already have syntax highlighting.

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That's nice. That's really nice.

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'def func_name()'.

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It does auto indentation for us.

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That's nice. "Hello World".

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We can execute 'func_name' in here.

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"Hello world",

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and it's just a little nicer.

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Now, if you're using interactive Python with a framework

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such as Django, it will also do a bunch of automatic imports

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for you, which is really, really nice.

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Now, while this does do pretty much everything the regular

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Python shell does, this is just a little nicer to look at.

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And as a little more advanced example of something you can

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do in the Python shell, or in the interactive shell that we're using

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here, we can import a file or a function from a file.

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So let's go ahead and take a look here

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what do we have to import.

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So I just called 'ipython' from my directory where I have

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all of these files here,

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and 'custom_module'.

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Yeah, so let's do 'from

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[no audio]

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custom_module', I could do tab completion,

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that's nice, 'import',

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and if I do tab completion, I can import all sorts of stuff,

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but I really only have the one function here called 'my_greeting',

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and I can do 'my_greeting()' as a function.

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And now I've imported a file. From my computer

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I've imported a function, and I've run that function.

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And so with interactive Python, you can do all that stuff.

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Again, you can do a lot of the stuff with the regular Python

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shell, but this one just looks a lot nicer.

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This also has a bunch of nice little shortcuts that you can

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get into if you want to.

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I don't really use too many of them.

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I just think this is a nicer version of a Python shell.

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So if you like nice things, and you like to have a nice shell,

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go ahead, and let's quit this, 'pip install ipython',

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and then once you've got that, just run 'ipython'.

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[no audio]