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Fixing PIL/Pillow IOError: decoder zip not available

· 4 min read
Serhii Hrekov
Serhii Hrekov
Senior Software Engineer & System Architect specializing in Python, Web Systems, Cloud Infrastructure & Automation

The error IOError: decoder zip not available (or zip decoder not available) is a common hurdle when working with image processing in Python, particularly when handling PNG or TIFF files using the Pillow library.

This error indicates that the underlying C library responsible for image compression (Zlib) was missing or not detected when Pillow was compiled on your system.