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I managed to install the plpython3u extention. But when I try to use a function that uses the extension I get:

ERROR:  could not load library "C:/Program Files/PostgreSQL/12/lib/plpython3.dll": unknown error 126 SQL state: 58P01

I'm using windows 10 and postgresql 12.

Leonel Mota
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1 Answers1

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You can simply solve this problem by installing the right (preferable version is in between 3.5.x to 3.8.x ) version of python and add paths to environment variables.

Steps:

Download and install the latest python version from this Download latest python version 3.8.x

Add environment variable:

  1. C:\Program Files\Python38\Scripts
  2. C:\Program Files\Python38
Yeasin Arafath
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  • I had alreary done this and still don't work. Do you have any guess of what else can be wrong? – Leonel Mota Sep 28 '20 at 22:41
  • For this now, i think, you have to copy the mentioned dll file from system32 folder to its original folder and do some extra bits of work. I request you to follow the steps to solve your problem from this link (https://postgresrocks.enterprisedb.com/t5/PostgreSQL/unable-to-install-pl-python-extension/td-p/4059/) – Yeasin Arafath Sep 29 '20 at 09:41