ModuleNotFoundError: No module named 'cv2' in opencv-4.0.0 and contrib-opencv-4.0.0 tags

[f9n]

Hi,
I think these tags doesn't work correctly.

tags: opencv-4.0.0, contrib-opencv-4.0.0

$ docker container run -it jjanzic/docker-python3-opencv:opencv-4.0.0 python 
Unable to find image 'jjanzic/docker-python3-opencv:opencv-4.0.0' locally
opencv-4.0.0: Pulling from jjanzic/docker-python3-opencv
54f7e8ac135a: Already exists 
d6341e30912f: Already exists 
087a57faf949: Already exists 
5d71636fb824: Already exists 
0c1db9598990: Already exists 
bfb904e99f24: Already exists 
78a3d3a96a32: Already exists 
885a0ed92c89: Already exists 
dd7cc9ace242: Already exists 
a24a072f8608: Pull complete 
a64f3f9c9555: Pull complete 
4212a3a34e29: Pull complete 
Digest: sha256:cf8c2f8a00c9bdc35ade7894bfa8f68b70434f4534d097ec0ea4069134f47784
Status: Downloaded newer image for jjanzic/docker-python3-opencv:opencv-4.0.0
Python 3.7.1 (default, Nov 16 2018, 22:26:09) 
[GCC 6.3.0 20170516] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import cv2
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'cv2'

$ docker container run -it jjanzic/docker-python3-opencv:contrib-opencv-4.0.0 python
Unable to find image 'jjanzic/docker-python3-opencv:contrib-opencv-4.0.0' locally
contrib-opencv-4.0.0: Pulling from jjanzic/docker-python3-opencv
54f7e8ac135a: Already exists 
d6341e30912f: Already exists 
087a57faf949: Already exists 
5d71636fb824: Already exists 
0c1db9598990: Already exists 
bfb904e99f24: Already exists 
78a3d3a96a32: Already exists 
885a0ed92c89: Already exists 
dd7cc9ace242: Already exists 
a07329d466c4: Pull complete 
57e9858ba364: Pull complete 
64f7b9be4e22: Pull complete 
2ffe99e25909: Pull complete 
Digest: sha256:de9bd86415472aabbdec81ef2295e57baeb8525a4e40d3d4c3cca16d98bcb0d8
Status: Downloaded newer image for jjanzic/docker-python3-opencv:contrib-opencv-4.0.0
Python 3.7.1 (default, Nov 16 2018, 22:26:09) 
[GCC 6.3.0 20170516] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import cv2
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'cv2'

Thanks gorogoroyasu for this pull request.
The solution worked for me.

$ docker container run -it jjanzic/docker-python3-opencv:contrib-opencv-4.0.0 bash   
root@fa545d0bd227:$ python3 -c "import cv2; print(cv2.__version__)"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
ModuleNotFoundError: No module named 'cv2'
root@fa545d0bd227:$ ln -s /usr/local/python/cv2/python-3.7/cv2.cpython-37m-x86_64-linux-gnu.so /usr/local/lib/python3.7/site-packages/cv2.so
root@fa545d0bd227:$ python3 -c "import cv2; print(cv2.__version__)"
4.0.0