ImportError: DLL load failed while importing _psycopg: The specified module could not be found (Postgres17 and create_engine)

[stephenjoly]

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Example Code

$ c:/Users/myuser/Home/Development/venv2/Scripts/python.exe c:/Users/myuser/Home/Development/app/main.py Traceback (most recent call last): File "c:\Users\myuser\Home\Development\app\main.py", line 30, in <module> engine=create_engine(DATABASE_URL) File "<string>", line 2, in create_engine File "C:\Users\myuser\Home\Development\venv2\Lib\site-packages\sqlalchemy\util\deprecations.py", line 281, in warned return fn(*args, **kwargs) # type: ignore[no-any-return] File "C:\Users\myuser\Home\Development\venv2\Lib\site-packages\sqlalchemy\engine\create.py", line 599, in create_engine dbapi = dbapi_meth(**dbapi_args) File "C:\Users\myuser\Home\Development\venv2\Lib\site-packages\sqlalchemy\dialects\postgresql\psycopg2.py", line 690, in import_dbapi import psycopg2 File "C:\Users\myuser\Home\Development\venv2\Lib\site-packages\psycopg2\__init__.py", line 51, in <module> from psycopg2._psycopg import ( # noqa ...<10 lines>... ) ImportError: DLL load failed while importing _psycopg: The specified module could not be found. (venv2)

Description

Error when calling create_engine. Seems like it relys on psycopg2 which currently has an issue open for Python 13 support on Windows. I am having a lot of issues with this. Using Python 13 on windows 10.

Operating System

Windows

Operating System Details

Windows 10

SQLModel Version

Postgres 17

Python Version

3.13.0

Additional Context

I installed the C compiled from visual studio. Tried uninstalling and reinstalling countless times. Set up different instances of postgress. Psycopg2 seems to be the ultimate problem here and I am not sure what to do. Anyone know how to fix this?

[YuriiMotov]

create_engine loads different modules depending on what database URL you specify.

Read more: https://docs.sqlalchemy.org/en/20/core/engines.html