new_contents: #!/usr/bin/env python
  
  from pymatgen.io.vaspio import Poscar
  import cProfile
  import pstats
  import os
  
  p = Poscar.from_file("../test_files/POSCAR.LiFePO4", check_for_POTCAR=False)
  s = p.structure
  
  def test():
      nn = s.get_sites_in_sphere([0, 0, 0], 20)
      print len(nn)
  
  cProfile.run('test()', 'testprof')
  p = pstats.Stats('testprof')
  p.sort_stats('cumulative').print_stats(20)
  os.remove("testprof")
  
subject: Add profiling dev script.