IndentationError: unexpected indent
This error matches known, documented patterns with reliable solutions.
Quick Fix (Most Common Solution)
- Use consistent indentation (4 spaces)
- Configure editor to use spaces
Seeing "IndentationError: unexpected indent"? This error can be frustrating, but it's usually fixable. It typically affects your development workflow or system. Below you'll find clear, step-by-step solutions to resolve this issue.
What This Error Means
Python found inconsistent indentation in your code.
Frequently documented in developer and vendor support forums.
Not affiliated with browser, OS, or device manufacturers.
New here? Learn why exact error messages matter →
Common Causes
- Mixed tabs and spaces
- Extra or missing indentation
- Copy-pasted code with wrong indent
How to Fix
- Use consistent indentation (4 spaces)
- Configure editor to use spaces
- Run python -tt to detect tab issues
Last reviewed: March 2026 How we review solutions
Optional follow-up
Some users ask whether saving fixes for recurring errors would be useful when the same issue appears again.
Was this explanation helpful?
Frequently Asked Questions
Should I use tabs or spaces?
PEP 8 recommends 4 spaces. Never mix tabs and spaces.
How do I fix mixed tabs?
Most editors can convert tabs to spaces automatically.
Related Resources
Also Known As
- Python exception
- Python traceback
- Python runtime error
- Python crash
Common Search Variations
- "python error fix"
- "python script not working"
- "python traceback what does it mean"
- "how to fix python exception"
- "python crash on startup"
- "python import error solution"
Related Errors
Still Stuck?
Paste a different error message or upload a screenshot to get help instantly.