waiting = [[0]]* 5 # we can assume the waiting to contain 5 lists
print((np.shape(waiting))) # (5, 1)
waiting[0][0] = waiting[0][0] + (0.72) # only the value at the first list should get changed
print(waiting) # [[0.72], [0.72], [0.72], [0.72], [0.72]] when I expected only the first list's 0
# to become 0.72
As explained in the comments, why is all of the array getting affected by the 3rd line waiting[0][0] = waiting[0][0] + (0.72)
