UnicodeDecodeError: codec can't decode
This error matches known, documented patterns with reliable solutions.
Quick Fix (Most Common Solution)
- Try different encodings like latin-1
- Open file with correct encoding
Seeing "UnicodeDecodeError: codec can't decode"? 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 cannot interpret the bytes using the specified encoding.
Frequently documented in developer and vendor support forums.
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Common Causes
- Wrong encoding specified
- Binary file opened as text
- Mixed encodings in file
How to Fix
- Try different encodings like latin-1
- Open file with correct encoding
- Open as binary mode if needed
Last reviewed: March 2026 How we review solutions
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Frequently Asked Questions
What encoding should I use?
UTF-8 is most common. Try chardet module to detect encoding.
How do I handle encoding errors?
Use errors="ignore" or errors="replace" in open().
Related Resources
Also Known As
- Python exception
- Python traceback
- Python runtime error
- Python crash
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