not authorized `cv' @ error/constitute.c/WriteImage/1028.

edit

I was following this tutorial which recommends to install a virtual environment. Installation didn't go well.

Then I followed the tutorial from the opencv website which installed correctly (I think, no error reports).

However, when I run:

import cv2 as cv

I get the following error:

import: not authorized `cv' @ error/constitute.c/WriteImage/1028.

I think it happens because of the old bad installation which installed a virtual environment.

I am having trouble solving this problem. Tried already to delete using apt-get remove/purge

But this error keeps appearing. Anybody got any simillar error? How did you solve? Thanks