Replace all __ with rjust, ljust or center.

thickness = int(input()) #This must be an odd number c = 'H' W = thickness*thickness +4# unterschiedliche Gesamtbreite

print(thickness)

Top Cone

for i in range(thickness): s=(2*i+1)*c print(s.center(2*thickness-1,' '))

Top Pillars

for i in range(thickness+1): s = thickness*c print(s.center(2*thickness-1) + ' '*(2*thickness+1) + s.center(2*thickness-1))

Middle Belt

for i in range((thickness+1)//2): s = 5*thickness*c print(s.center(5*thickness+2*(thickness//2),' '))

Bottom Pillars

for i in range(thickness+1): s = thickness*c print(s.center(2*thickness-1) + ' '*(2*thickness+1) + s.center(2*thickness-1))

Bottom Cone

for i in range(thickness): s=(2*(thickness-i)-1)*c print(' '.center(2*thickness-1,' ')+' '.center(2*thickness+1,' ')+s.center(2*thickness-1,' '))