导入 cv2 >> 模块未发现错误：没有名为"cv2"的模块

import cv2
ModuleNotFoundError: No module named 'cv2'
although it already installed but run in cmd only 
not working in any IDE like Vs or spyder or Jupyter 

try:
import opencv-python
except:
subprocess.check_call([sys.executable, "-m", "pip", "install", 'opencv-python'])

或者，在IDE中打开控制台并执行以下操作：

pip install opencv-python

您的IDE可能使用与控制台使用的python实例不同的python实例