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

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