The Python “IndentationError: unindent does not match any outer indentation level”: How to Fix!!


Many beginner Python programmers have trouble troubleshooting their code when they get an error that says “IndentationError: unindent does not match any outer indentation level.” In this blog post, we’ll explore what this error means and how to fix it.

What is IndentationError?

IndentationError is an error that occurs when you have an improper indentation in your Python code.

Indentation is important in Python because it indicates what code should be run together.

For example, if you have a for loop, the code inside the for loop should be indented so that Python knows to run it together. If your indentation is off, you’ll get an IndentationError.

The Python “IndentationError: unindent does not match any outer indentation level” is a common error that occurs when we mix tabs and spaces in the same code block.

How to Fix It

The error can be easily fixed by removing the spacing and only using tabs or spaces, but we must be careful not to mix the two in the same code block.

The best way to fix this error is to check your code block and make sure that all of the lines are properly indented. If you see a line that is not properly indented, simply add the correct amount of indentation. A good rule of thumb is to use four spaces for each indentation. You can also use a tab, but four spaces are generally preferred.

Although it may seem like a small thing, mixing tabs and spaces can cause big problems in our code. Therefore, it is important to be aware of this error and how to fix it.

The Python “IndentationError: unindent does not match any outer indentation level” error is caused by a code block that is not properly indented. This can happen when you forget to indent a line of code or when you accidentally delete an indent. The best way to fix this error is to check your code block and make sure that all of the lines are properly indented. If you see a line that is not properly indented, simply add the correct amount of indentation.

Andy Avery

I really enjoy helping people with their tech problems to make life easier, ​and that’s what I’ve been doing professionally for the past decade.

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