OpenCV python: ValueError: too many values to unpack

Question

I\'m writing an opencv program and I found a script on another stackoverflow question: Computer Vision: Masking a human hand

When I run the scripted answer, I get th

Answer 1

The thing you need to do is just add '_' where you are not using the required var , originally given by:

im2, contours, hierarchy = cv2.findContours(thresh,cv2.RETR_TREE,cv2.CHAIN_APPROX_SIMPLE)

to

_ , contours, _ = cv2.findContours(thresh,cv2.RETR_TREE,cv2.CHAIN_APPROX_SIMPLE)

Here the original doc is given: https://docs.opencv.org/3.1.0/d4/d73/tutorial_py_contours_begin.html