python - Notepad++ indentation messes up

Question

I'm coding in Python and I really like Notepad++. However, off late when I use tab to indent, it seems fine in Notepad++, but when I run the program I get an indentation error, and when I check my code in Emacs or something, I find that Notepad++ actually adds more tab spaces than it shows on screen. What is happening?

Answer 1

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'