profile (with hotshot) slow code

It was experimental and dropped from Python 3

import slow
import os
import hotshot, hotshot.stats

prof = hotshot.Profile("slow.prof")
prof.runcall(slow.main, 1000)
prof.close()
stats = hotshot.stats.load("slow.prof")
stats.strip_dirs()
stats.sort_stats('time', 'calls')
stats.print_stats(20)

os.remove("slow.prof")

         501501 function calls in 0.337 seconds

   Ordered by: internal time, call count

   ncalls  tottime  percall  cumtime  percall filename:lineno(function)
   498501    0.192    0.000    0.192    0.000 slow.py:37(swap)
        1    0.136    0.136    0.335    0.335 slow.py:21(sort)
      999    0.006    0.000    0.006    0.000 slow.py:4(f)
      999    0.002    0.000    0.002    0.000 random.py:173(randrange)
        1    0.001    0.001    0.003    0.003 slow.py:31(get_str)
      999    0.000    0.000    0.000    0.000 slow.py:10(g)
        1    0.000    0.000    0.337    0.337 slow.py:14(main)
        0    0.000             0.000          profile:0(profiler)