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

Since I realize there's no answer specific to spyder,I'll add one: Basically, carefully look at your if statement and make sure all if, elif and else have the same spacing that is they're in the same line at the start like so:

def your_choice(answer):
    if answer>5:
        print("You're overaged")
    elif answer<=5 and answer>1: 
            print("Welcome to the toddler's club!")
    else:
            print("No worries mate!")

Answer 2

I had a function defined, but it did not had any content apart from its function comments...

def foo(bar):
    # Some awesome temporary comment.
    # But there is actually nothing in the function!
    # D'Oh!

It yelled :

  File "foobar.py", line 69

                                ^
IndentationError: expected an indented block

(note that the line the ^ mark points to is empty)

--

Multiple solutions:

1: Just comment out the function

2: Add function comment

def foo(bar):
    '' Some awesome comment. This comment could be just one space.''

3: Add line that does nothing

def foo(bar):
    0

In any case, make sure to make it obvious why it is an empty function - for yourself, or for your peers that will use your code

Answer 3

IMPORTANT: Spaces are the preferred method - see PEP008 Indentation and Tabs or Spaces?. (Thanks to @Siha for this.)

For Sublime Text users:

Set Sublime Text to use tabs for indentation: View --> Indentation --> Convert Indentation to Tabs

Uncheck the Indent Using Spaces option as well in the same sub-menu above. This will immediately resolve this issue.

Answer 4

I am using Sublime Text 3 with a Flask project. I fixed the error using View > Indentation > Tab Width: 4 after unselected Indent Using Spaces

Answer 5

For what its worth, my docstring was indented too much and this also throws the same error

class junk: 
     """docstring is indented too much""" 
    def fun(): return   

IndentationError: unindent does not match any outer indentation level

Answer 6

I had the same issue yesterday, it was indentation error, was using sublime text editor. took my hours trying to fix it and at the end I ended up copying the code into VI text editor and it just worked fine. ps python is too whitespace sensitive, make sure not to mix space and tab.