Untitled

def middle_element(lst):
 
  if len(lst)%2 == 0:
    return median   
  else:
    index= int(len(lst)/2-0.5) 
    return lst[index]
 
 
print(middle_element([5, 2, -10, 1, 2, 4, 5]))
 
lst2=[5, 2, -10, 1, 2, 4, 5]
print(middle_element([lst2]))