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Successfully install opencv-python using pip: python3 –m pip install opencv-python
Actual behaviour
Building wheel for opencv-python (PEP 517) ... error CMake Error: CMake was unable to find a build program corresponding to "Ninja"
Steps to reproduce
example code
cd test_cv
source test_cv/bin/activate
python3 -m pip install opencv-python
operating system
$ uname -a
Linux raspbari3 6.1.21-v7+ #1642 SMP Mon Apr 3 17:20:52 BST 2023 armv7l GNU/Linux
OS: Raspbian GNU/Linux 11 (bullseye) armv7l
Host: Raspberry Pi Zero 2 W Rev 1.0
architecture (e.g. x86)
armv7l
opencv-python version
opencv-python-4.9.0.80.tar.gz
Issue submission checklist
This is not a generic OpenCV usage question (looking for help for coding, other usage questions, homework etc.)
I have read the README of this repository and understand that this repository provides only an automated build toolchain for OpenCV Python packages (there is no actual OpenCV code here)
The issue is related to the build scripts in this repository, to the pre-built binaries or is a feature request (such as "please enable this additional dependency")
I'm using the latest version of opencv-python but
apt installed OpenCV version 4.5.1 with: sudo apt install python3-opencv
I am using a Python virtual environment with venv.
numpy installed correctly
Python version 3.9.2
Ninja does not exist in the system
Can run opencv outside of virtual environment but it is v4.5.1
The text was updated successfully, but these errors were encountered:
OpenCV setup.py script does not force make program for internal CMake configuration by default. Build tools do selection automatically (tries ninja, gnu make, etc one by one). See skbuild package and it's options for details.
Expected behaviour
Successfully install opencv-python using pip:
python3 –m pip install opencv-python
Actual behaviour
Building wheel for opencv-python (PEP 517) ... error
CMake Error: CMake was unable to find a build program corresponding to "Ninja"
Steps to reproduce
architecture (e.g. x86)
armv7l
opencv-python version
opencv-python-4.9.0.80.tar.gz
Issue submission checklist
opencv-python
butapt installed OpenCV version 4.5.1 with:
sudo apt install python3-opencv
I am using a Python virtual environment with venv.
The text was updated successfully, but these errors were encountered: