# Incompatible codecs in module "encodings.utf\_8"

**URL:** <https://forum.inductiveautomation.com/t/incompatible-codecs-in-module-encodings-utf-8/68945>\
**Category:** Ignition\
**Tags:** ignition81\
**Created:** [January 23, 2023, 11:29pm UTC](https://forum.inductiveautomation.com/t/incompatible-codecs-in-module-encodings-utf-8/68945 "2023-01-23T23:29:34Z")\
**Posts on this page:** 1\
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**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\
**Post date:** [January 24, 2023, 12:35am UTC](https://forum.inductiveautomation.com/t/incompatible-codecs-in-module-encodings-utf-8/68945/3 "2023-01-24T00:35:34Z")

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This is a known thing with no real satisfactory "fix" beyond, as Phil said, avoiding Jython stdlib stuff. My hunch is that it's a Jython bug we'll have to diagnose and fix.

> [@\[BUG-6135\]CodecRegistryError when importing json library](https://forum.inductiveautomation.com/t/bug-6135-codecregistryerror-when-importing-json-library/34668):
>
> Hello. I’m having trouble importing the Python json module from within a Python library my team has built, which is installed in the pylib directory. Many times, when this module is imported, the following exception occurs: File "D:\Program Files\Inductive Automation\Ignition\user-lib\pylib\json\_\_init\_\_.py", line 108, in \<module\> from .decoder import JSONDecoder File "D:\Program Files\Inductive Automation\Ignition\user-lib\pylib\json\decoder.py", line 24, in \<module\> NaN, PosInf,…

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