Your screenshot shows you doing a pip install from the python terminal which is wrong. Do that outside the python terminal. Also the package I believe you want is:
Copypip install opencv-python
Since you're running on Windows, I might look at the official install manual: https://breakthrough.github.io/Installing-OpenCV
opencv2 is ONLY compatible with Python3 if you do so by compiling the source code. See the section under opencv supported python versions: https://pypi.org/project/opencv-python
Answer from Andrew Long on Stack OverflowYour screenshot shows you doing a pip install from the python terminal which is wrong. Do that outside the python terminal. Also the package I believe you want is:
Copypip install opencv-python
Since you're running on Windows, I might look at the official install manual: https://breakthrough.github.io/Installing-OpenCV
opencv2 is ONLY compatible with Python3 if you do so by compiling the source code. See the section under opencv supported python versions: https://pypi.org/project/opencv-python
There is a problem with pylint, which I do not completely understood yet.
You can just import OpenCV with:
from cv2 import cv2
» pip install opencv-python
Issue "ModuleNotFoundError: No module named 'cv2'" although opencv is installed
Installed opencv but having trouble importing it
Pip install works but I can't import "Fer and CV2"
python - import opencv vs import cv2 - Stack Overflow
Videos
» pip install cv2-tools
You should import cv2. OpenCV releases two types of Python interfaces, cv and cv2. latest one is cv2. This will give you an idea whether you have installed opencv correctly.
The naming of cv2 is a historical accident.
History lesson: OpenCV began as a C API. The first Python bindings back then used the cv import. With OpenCV version 2.0, a C++ API was introduced. That is also when C++ includes saying #include <opencv2/...> showed up. The C++ API uses the cv:: namespace. The Python import was now called cv2, and carried the old C API in the cv2.cv namespace.
The 2 basically just means "The new API".
Since then, versions 3.x and 4.x, "the C++ API" is still the primary API, and currently the only API, because the C API was removed. However, the location of headers has not changed with new major versions and the name of the Python module import also has not changed.
The opencv-python packages only provide the cv2 import. That is the import for all v3.x and 4.x versions, i.e. the current version, and probably will carry into v5.x. The recommended import and usage is:
import cv2 as cv # to mirror the `cv::` namespace
# use cv.imread() and so on
There is no opencv import. If that "worked", it's wrong and something is tricking you. Check the installed packages and remove anything shady. The only trustworthy packages giving you OpenCV in Python are the official ones, which is opencv-python on PyPI and its sibling packages (package with additional contrib modules, package excluding GUI modules).
There is no cv import. In the future, these packages may be changed to drop the old name and offer the cv import directly.