IndentationError: unindent does not match any outer indentation level

Question

When I compile the Python code below, I get

IndentationError: unindent does not match any outer indentation level

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Answer 1

Just a addition. I had a similar problem with the both indentations in Notepad++.

1. Unexcepted indentation

2. Outer Indentation Level

   Go to ----> Search tab ----> tap on replace ----> hit the radio button Extended below ---> Now replace \t with four spaces

   Go to ----> Search tab ----> tap on replace ----> hit the radio button Extended below ---> Now replace \n with nothing