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Hello and welcome to this video.

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In this video I'll be showing you ways of interacting with Python the common ways of interacting with

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python is via the python shell or console.

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This is suitable if you are only writing a single line of code or a few lines of code.

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You can also interact with Python via a python file a python file is basically a father has a dot P

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Y extension.

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So let's take a look at how we can access the python shell or console so we can access the python shell

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via the command line interface which on a Mac is known as a terminal.

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If you're on a Windows is called a command prompt.

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You can also access Python Shell via the python.

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I do the I do basically is what is known as an integrated development environment.

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It comes pre-built with Python.

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So when you install Python it also installs the python idle and the python I do has a python shell.

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It also has its own text editor that you can use to write multiple lines of code to access the command

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line interface on a Windows based computer.

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You type in C M.D. inside the wrong command or search.

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Once you've got that open you type in Python and that will give you access to the python shell if you

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are on a Mac.

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You need to do a search for the terminal.

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Once you've got the terminal open you need to type in Python 3 and they'll give you access to the Python

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3 shell.

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The reason you type in Python 3 on a Mac is that Mac comes pre installed with Python 2 which is quite

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old.

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Once you have once you've got Python 3 installed to access it you need to type in Python 3.

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If not gives you Python too.

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If you just typed in Python so I am on Windows.

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This is my command prompt so to access the python show I just type in Python and press enter.

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That should give me access to the show you can see.

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This means that the shell is waiting for instructions if you are on a Mac you need to type in Python

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3 on the terminal.

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So once you've got this flashing cursor it means the shell is waiting for instructions.

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I can do a simple maths I can do seven times seven and press presenter and that will give me 49 so the

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shell Python Shell is interactive.

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If you want to print out text on the console you can use the print function Python comes pre-built with

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a print function that allows you to enter the text you want to be displayed on the screen.

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So those two a print from trying to do a print and then you have the parentheses inside the parentheses

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is where you specify what you want to print.

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You need to enclose that in quotes.

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So I just say hello.

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And you close the corpse and then you close the parentheses and you press enter and that will simply

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display the text.

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Hello and Python.

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A text or group of text is known as a string and you will know where the computer can understand it.

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If you put if you put quotes around them so you can't make the quotes you either you either surround

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the text with two single quotes or two double quote but you can't mix it with a single and a double.

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So it is worth noting that any time you want to print a text for the computer to know it's a text you

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need to enclose it in quotes to exit the python shell you just typing exit and you enclose that in parentheses.

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So you go to open in parentheses and close in parentheses and press enter and that will exit the python

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shell.

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Another way you can access the Python Shell is via the python.

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I'd always come pre installed when you install Python.

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Now this is a shortcut I have to the idol so I'm just going to click on it.

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You can also search for it in your search bar and that should bring that up as well.

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So I'm just going to click to open up the Idol and this is what the python ideal looks like and you

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can see it opens up straight into the python shell.

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So this is similar to the shell we had to look at earlier from the command line.

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All right.

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So those are a couple of ways you can access the python shell.