Python vs Javascript

[moon_aka_sun]

Desktop, Athlon 64 X2 2.3GHz:

js/firefox 0.03 seconds
c/gcc      0.07
js/chrome  0.33
py2+psycho 0.35
py3        2.59
js/opera   2.78
js cscript 3.06
py2        3.23
perl       3.36
js/ie8     4+
ruby       7.77
rebol      7.89

Netbook, Atom n270 1.6GHz:

js/chrome  0.73 (2.2x)
js cscript 5.34 (1.7x)
py3        5.42 (2.1x)

I just wanted to compare two langs and two comps. The program calculates Mandelbrot figure.

try:
  import psyco
  psyco.full()
except ImportError:
  pass

import sys, time

BAILOUT = 16
MAX_ITERATIONS = 1000

def test():
  out = ''
  for y in range(-39, 39):
    out += '\n'
    for x in range(-39, 39):
      i = mandelbrot(x/40.0, y/40.0)
      if i == 0:
        out += '*'
      else:
        out += ' '
  print(out)

def mandelbrot(x, y):
  cr = y - 0.5
  ci = x
  zi = 0.0
  zr = 0.0
  i = 0
  while True:
    i += 1
    temp = zr * zi
    zr2 = zr * zr
    zi2 = zi * zi
    zr = zr2 - zi2 + cr
    zi = temp + temp + ci
    if zi2 + zr2 > BAILOUT:
      return i
    if i > MAX_ITERATIONS:
      return 0

t = time.time()
test()
print('\nPython Elapsed %.02f' % (time.time() - t))