Not able to use background substractor module in opencv

Question

I am trying to use background Substractor module in opencv. I am referring this blog. I am not able to use it because I again and again get the error message 'module' object has no attribute 'createBackgroundSubtractorMOG' , I have go-ogled through all the answers to this problem and I have tried using all the substrings possible like - createBackgroundSubtractor , BackgroundSubtractor , createBackgroundSubtractorMOG2 etc. but I again get the same error message. I am using -

• opencv 3.0.0

• python 2.7.10

• ubuntu 15.10

here's my code--

import numpy as np 
import cv2

cap = cv2.VideoCapture(0)
fgbg = cv2.createBackgroundSubtractorMOG(detectShadows=True)

while(1):
    ret, frame = cap.read()
    fgmask = fgbg.apply(frame)

    cv2.imshow('frame', fgmask)
    k = cv2.waitKey(0)
    if(k == 27):
        break
cap.release()
cv2.destroyAllWindows()

Answer 1

Got my question solved. What i did , I opened python command line and wrote dir(cv2) and it listed me all the functions I can call and there I found BackgroundSubtractorMOG and it worked!