Notepad++ indentation messes up

python notepad++ indentation

There is no universal tab size, so I always make sure to replace tabs by spaces (so you know what you see is what you get everywhere else as well)

Go to Settings -> "Preferences..." -> Language Menu/Tab Settings and check 'Replace by space'

python notepad++ indentation

I would suggest going to View > Show Symbol > Show Whitespace and Tab to get an better idea of how your indentations look.

python notepad++ indentation

PEP 8 tells us to use spaces instead of tabs in Python for cross-editor compatibility and consistency:

Have a look at this answer for how to change tabs to spaces in Notepad++

Perhaps that will fix your problem

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