Help using opencv python

edit

Hi I am trying to rectify a pair of stereo images and I found the documentation of opencv for python. Now I'm trying to get the fundamental matrix to use it as argument for the function that restifies uncalibrated cameras. I was using surf detector and brutal force BFmatcher but in the tutorial it uses a function DrawMatches that I think it is not available for python. When trying to use FindFundamentalMat I dont know how to pass the array of points 1 and 2, I dont even know which is the format. I would really appreciated if someone can help me, please