OpenCV-Python is a library of Python bindings designed to solve computer vision problems
OpenCV-Python makes use of Numpy, which is a highly optimized library for numerical operations with a MATLAB-style syntax. All the OpenCV array structures are converted to and from Numpy arrays. This also makes it easier to integrate with other libraries that use Numpy such as SciPy and Matplotlib
In commard line run these command lines for some installtions
pip install numpy
pip install matplotlib
pip install opencv-python
pip install requests
Then run python in commandline
C:/python27/python
import cv2
import matplotlib
import numpy
import requests
Then ready to roll.