opencv 설치할때 pip로 설치는 되었는데, 실행하면 에러남 File "/usr/local/lib64/python3.6/site-packages/cv2/__init__.py", line 181, in bootstrap() File "/usr/local/lib64/python3.6/site-packages/cv2/__init__.py", line 153, in bootstrap native_module = importlib.import_module("cv2") File "/usr/lib64/python3.6/importlib/__init__.py", line 126, in import_module return _bootstrap._gcd_import(name[level:], package, level)..