Terminal graphics hourglass

def hg(h, top=0, bot=0):

    print('#'*(2*(h+1)-1))

    for i in range(h):
        if h-i <= top:
            print(' '*i+'#'+'.'*(h-i)+'.'*(h-i-1)+'#'*(h-i>0))
        else:
            print(' '*i+'#'+' '*(h-i)+' '*(h-i-1)+'#'*(h-i>0))

    for i in range(h):
        if h-i <= bot:
            print(' '*(h-i)+'#'+'.'*(i)+'.'*(i-1)+'#'*(i>0))
        else:
            print(' '*(h-i)+'#'+' '*(i)+' '*(i-1)+'#'*(i>0))

    print('#'*(2*(h+1)-1))