Pycharm can run my opencv code but phyton won't respond

I also happens when I want to see a picture or play a video from PyCharm.

Does it happen only when you run your code from PyCharm?

Have you tried running it from the system terminal using the same command that PyCharm runs?

It happens when I run the code from PyCharm. I tried running the same code on IDLE and it runs.

I tried running it from the system terminal using the same commands and it runs.

Is it reproducible with any code or only when working with opencv?

If latter, could you share a code sample? I'd like to try it in my environment.

It is not only camera for me, python basically doesn't even show image(doesn't respond).

from cv2 import cv2 as cv

img = cv.imread("Photos/cat_large.jpg")
cv.imshow("cat", img)
cv.waitKey(0)

What PyCharm and macOS versions do you use?

Could you create a new project with a new virtualenv, install opencv and try reproducing the problem? What's the result?

PyCharm 2020.2.4 (Professional Edition)
Build #PY-202.8194.15, built on November 25, 2020
Licensed to "my name and surname"
Subscription is active until "date"
For educational use only.
Runtime version: 11.0.9+11-b944.49 x86_64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
macOS 10.16
GC: ParNew, ConcurrentMarkSweep
Memory: 990M
Cores: 4
Non-Bundled Plugins: com.jetbrains.intellij.datalore

Your Mac is up to date -- macOS Big Sur 11.0.1

Last checked: Today, 17:00

I made new project and installed opencv again but I got the same error. No luck.

Let's do one more test:


Copy the command that PyCharm executes for running your script, paste it to PyCharm's terminal and run. What's the result?

No luck unfortunately.

There is a new update, I did it but still, nothing.