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Hello and welcome to this video.

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Indentation and Pi tone is used to separate or section off parts of a block of code by Tom.

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Unlike other languages does not use semicolons or curly braces to indent code pi.

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Tom uses white spaces to separate code blocks so as to indent the parts of the code so indentation in

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Python is very important indentation in Python can be created using tabs or spaces.

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However it is recommended that you use spaces and not tab to intent.

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And when you do use spaces for indentation make sure that they are four spaces you could be more but

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it is recommended to indent using four spaces so also advisable not to mix the indentation.

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So don't indent with spaces and also indent with tabs that will confuse python.

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So I would recommend you stick to using spaces to indent your code inside my text editor.

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I'm what a python file which is this file here on my desktop.

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This is the content of the file so you can see here the print statements are all on the same line which

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is OK so if I run this block of code inside my terminal on the bottom here.

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So I just need to do call the application by his name so I do my up dot P Way.

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If you are on a Mac you need to type in Python 3 followed by the name of the python file before you

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can run it.

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Now you can see here the content of the file has been output it in my console here.

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Now these lines of code as it is is proper properly indented so indentation.

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If I wanted to for example if I should then that just do that.

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This and I tried to run this file again.

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It will fail because the indentation is out of line is not appropriate.

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So let me go to my terminal and run again.

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I expect to get an error.

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You can see here tells me gives me that they print told me where the error is which is this online too.

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You can see that says silence is true friend which is this one says telling me that the indentation

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is not correct.

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So once the indentation is wrong it does not run the code.

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This is very important when you are writing several lines of code to make sure that it is properly indented

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okay because these are all single line statements.

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They have to be on the same line.

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So that's why the indentation is important.

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If you had several block of code in different sections you used indentation to separate the sections

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of the code so that each block belongs to a certain section with single line.

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Comments like these is OK because it's just print statement and they all should be on the same lines

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because they are not part of a block.

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They are independent so they have to be on the same line.

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If you try to shift them like I did on this one it you know it impacts because it means indentation

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is not correct and therefore gives you an error in the application.

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So that's basically how indentation works so is very important in Python.

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Thanks for watching and bye for now.