Type Error on import twain

[furqanazhar]

I am facing issue right on the first line.

OS : Windows 10 64-bit

import twain

Traceback (most recent call last):
File "C:\Users\DELL\PycharmProjects\DocScanner1\main.py", line 1, in
import twain
File "C:\Users\DELL\PycharmProjects\DocScanner1\venv\lib\site-packages\twain_init_.py", line 12, in
from .lowlevel.structs import *
File "C:\Users\DELL\PycharmProjects\DocScanner1\venv\lib\site-packages\twain\lowlevel\structs.py", line 174, in
def frame2tuple(frame: TW_FRAME) -> tuple[float, float, float, float]:
TypeError: 'type' object is not subscriptable

[denisenkom]

What is your Python version? You are probably using unsupported version, oldest supported version is 3.8

[furqanazhar]

Preivously, I had python 3.8 installed but still same issue so i upgraded to python 3.12 and got it running. But now when i click scan button, below error pops up, can you help me here?

INFO:twain:attempting to load dll: twaindsm.dll
ERROR:twain:load failed with error Could not find module 'twaindsm.dll' (or one of its dependencies). Try using the full path with constructor syntax

[denisenkom]

Here https://pytwain.readthedocs.io/en/latest/ you can find some information on how to install twaindsm.dll