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

---

Answer 1

It could be because the function above it is not indented the same way. i.e.

class a:
    def blah:
      print("Hello world")
    def blah1:
      print("Hello world")

Answer 2

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

Answer 3

Whenever I've encountered this error, it's because I've somehow mixed up tabs and spaces in my editor.

Answer 4

On Atom

go to

Packages > Whitespace > Convert Spaces to Tabs

Then check again your file indentation:

python -m tabnanny yourFile.py

or

>python
>>> help("yourFile.py")

Answer 5

For SPYDER users: I'm using spyder 3.3.2 with python 3.7.1 and I solved this, setting indentation to use tabs, with the following steps, click on:

• Tools.
• Preferences.
• Editor.
• Advanced settings.
• Indentation characters -> Tabs.

Then I reset the "unidented" line using tab key.

For some reason, without this setting, I got the ghost IndentationError sometimes.

Answer 6

If you are using Vim, hit escape and then type

gg=G

This auto indents everything and will clear up any spaces you have thrown in.