Simple Mandelbrot Generator in Python

mandelbrot.py

import math, cmath;
nsq=100;
ndiv=20;
dval=6;
size(20*cm,20*cm);
#fontsize(10)

for x,y in grid(nsq,nsq,math.floor(WIDTH/nsq),math.floor(HEIGHT/nsq)):
    ctrz=complex(6*(x+(math.ceil(WIDTH/nsq)/2)-(WIDTH/2))/(WIDTH),6*(y+(math.ceil(HEIGHT/nsq)/2)-(HEIGHT/2))/(HEIGHT));
    tmp=complex(0,0);
#    print(abs(ctrz));
#    print(ctrz);
    for i in range(ndiv):
        tmp=tmp*tmp + ctrz;
        print(abs(tmp))
        if abs(tmp)>dval:
            print(float(i)/ndiv);
            fill(float(i)/ndiv);
            break;
    print("");
#    c=color(random(),random(), random());
#    fill(c);
    rect(x,y,math.ceil(WIDTH/nsq),math.ceil(HEIGHT/nsq));
    #fill(0)
    #text(ctrz,x+math.ceil(WIDTH/nsq)/2,y+math.ceil(HEIGHT/nsq)/2)