HandGesture Detection

Question

When I run this:

contours,_,hierarchy = cv2.findContours(thresh.copy(),cv2.RETR_TREE, cv2.CHAIN_APPROX_NONE)

I get this error:

Answer 1

cv2.findContours() return two values and cannot be unpacked to contours, hierarchy and _

It should be like this：

contours, hierarchy = cv2.findContours(thresh.copy(),cv2.RETR_TREE, cv2.CHAIN_APPROX_NONE)

or more：

a, b, *others = [1, 2, 3, 4]