Listing n Output LA AP2B (PYTHON)

Listing:
a=input("masukkan nilai:")
p=a
q=1
r=2*a-1
for i in range(0,a):
for j in range(0,r):
if j == p :
for k in range (0,q):
print "*",
else :
print" ",
print
p = p-1
q=q+2


OUTPUT: