[Solved] IndentationError: unindent does not match any outer indentation level

IndentationError: unindent does not match any outer indentation level

An IndentationError: unindent does not match any outer indentation level typically occurs when there is an inconsistent or mismatched indentation level in your code, particularly when dedenting (removing indentation) doesn't match the level of outer indentation.

Here's an example that can cause this error:

Python Program

x = 5

if x == 5:
    print("x is 5.")
  print("end of if")  # Inconsistent indentation level

Output

  File "example.py", line 5
    print("end of if")  # Inconsistent indentation level
                                                        ^
IndentationError: unindent does not match any outer indentation level

In this example, the print("end of if") statement is expected to be at the same indentation level as the print("x is 5.") statement. However, it's indentation is not matching with that of the previous statement, which leads to the IndentationError.

Solution

To fix this error, ensure that all the lines in the block are at the same level of indentation. Here's the corrected version:

Python Program

x = 5

if x == 5:
    print("x is 5.")
    print("end of if")  # Inconsistent indentation level

Output

x is 5.
end of if

Now, the program has run without any IndentationError.

Summary

In this tutorial, we learned how to solve the IndentationError that occurs when we provide an inconsistent indentation for the statements inside a block of code.