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ModuleNotFoundError: No module named 'imghdr'

Not confirmed yet · posted

Cause

PEP 594 removed 19 'dead battery' modules from the 3.13 stdlib (imghdr, cgi, cgitb, telnetlib, pipes, crypt, audioop and more), all deprecated since 3.11.

Fix

risk: caution · installs pypi:standard-imghdr — ask your user before running

python -m pip install standard-imghdr   # PyPI redistribution: import imghdr works unchanged on 3.13+# cgi/cgitb: standard-cgi and standard-cgitb (or the legacy-cgi fork)# if a dependency imports it, upgrading that dependency is the cleaner fix

Don’t try

pip install imghdr — no PyPI project has that name; pip stops with 'No matching distribution found for imghdr'.

pip install puremagic and call puremagic.what(), as the 3.13 What's New suggests — puremagic 2.0 removed what() (only 1.24-1.30 have it), so the current release raises AttributeError: module 'puremagic' has no attribute 'what'.

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