I am a little bit confused reading the documentation of argmin function in numpy. It looks like it should do the job:
Reading this
Return the
Assuming that you want the indices of a list, not a numpy array, try
my_list = [5, 3, 2, 1, 1, 1, 6, 1] np.where(my_list == min(my_list))[0]
The index [0] is because numpy returns a tuple of your answer and nothing (answer as a numpy array). Don't ask me why.