AttributeError: 'module' object has no attribute 'cv'
<p>I am getting the following error while trying to do a BGR to binary threshhold conversion.</p>

<blockquote>
  <p>imgthreshhold = cv2.inRange(img, cv2.cv.Scalar(3,3,125),
  cv2.cv.Scalar(40,40,255)) AttributeError: 'module' object has no
  attribute 'cv'</p>
</blockquote>

<p>Following is the complete program.</p>

<pre><code>import cv2

cap = cv2.VideoCapture(0)
#help(cv2)
while cap.isOpened():
    #BGR image feed from camera
    ret, img = cap.read()
    cv2.imshow('output', img)
    #BGR to grayscale
    img2 = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
    cv2.imshow('grayscale', img2)
    #BGR to binary(RED) thershholded
    imgthreshhold = cv2.inRange(img, cv2.cv.Scalar(3,3,125), cv2.cv.Scalar(40,40,255))
    cv2.imshow('threshholded', imgthreshhold)

    k = cv2.waitKey(10)
    if k==27:
        break

cap.release()
cv2.destroyAllWindows()
</code></pre>

<p>How can I fix this?</p>