For example take this script (on 32bit):
ha = hash("\x00\xcf\x0b\x96\x19")
hb = hash("\x00\x6d\x29\x45\x18")
if ha == hb:
  print "collision"

And run following:
for i in `seq 0 25`; do echo $i; for j in `seq 0 100`; do ./python -R x.py; done; done;

It gives collison too many times (around 9 out of 2500).