问题
python version = Python 3.8.0
pip version = 19.3.1
C:\Users\Sami Ullah Ch>pip3 install opencv-python
ERROR: Could not find a version that satisfies the requirement opencv-python (from versions: none)
回答1:
Install OpenCV
Refresh the packages index and install the OpenCV package by typing:
sudo apt update
sudo apt install python3-opencv
The command above will install all packages necessary to run OpenCV.
Verify the OpenCV installation
To verify the installation we will import the cv2 module and print the OpenCV version:
>>> import cv2
>>> cv2.__version__
Output
3.2.0
回答2:
OpenCV has not been built yet for 3.8.0. You should try using Python version 3.7
来源：https://stackoverflow.com/questions/58919182/getting-error-while-installing-opencv-via-pip