.cv2 is not found

[mavyasoni786]

I have used command

python3 labelling-character.py

Traceback (most recent call last): File "labelling-character.py", line 3, in import cv2 File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/cv2/init.py", line 4, in from .cv2 import * ImportError: dlopen(/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/cv2/cv2.cpython-36m-darwin.so, 2): Symbol not found: _clock_gettime Referenced from: /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/cv2/.dylibs/libavutil.55.78.100.dylib (which was built for Mac OS X 10.12) Expected in: /usr/lib/libSystem.B.dylib in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/cv2/.dylibs/libavutil.55.78.100.dylib