Why doesn't pip freeze show opencv?

问题

I've installed OpenCV on my mac and I can import it in Python:

>>> import cv2
>>> cv2.__version__
'3.2.0'

but when I use pip freeze the package is not in the list:

$ pip freeze | grep cv

How can this be?

回答1:

As @ZdaR suggested in the comment above, it was because opencv wasn't installed through pip.

In any case I wish you all a beautiful day.

来源：https://stackoverflow.com/questions/42313103/why-doesnt-pip-freeze-show-opencv