OpenCV Python 3.3
You'll have to install all the libraries you want to use together with OpenCV for Python 2.7. This is not much of a problem, you can do it with pip in one line, or choose one of the many pre-built scientific Python packages.
I have Python 3.3 and 2.7 installed on my computer
For Python 3.3, I installed many libraries like numpy, scipy, etc
Since I also want to use opencv, which only supports python 2.7 so far, I installed opencv under Python 2.7.
Hey, here comes the problem, what if I want to import numpy as well as cv in the same script?