def cleanup():
  print("Removing NoSpherA2
  base_dir = OV.BaseDir()
  import shutil
  import os
  exe_pre ="NoSpherA2"
  wfn_2_fchk = None
  if sys.platform[:3] == 'win':
    _ = os.path.join(base_dir, "%s.exe" %exe_pre)
    if os.path.exists(_):
      wfn_2_fchk = _
    else:
      wfn_2_fchk = olx.file.Which("%s.exe" %exe_pre)
  else:
    if os.path.exists(os.path.join(base_dir,exe_pre)):
      wfn_2_fchk = os.path.join(base_dir,exe_pre)
    else:
      _ = os.path.join(self.p_path, "%s" %exe_pre)
      if os.path.exists(_):
        wfn_2_fchk = _
      else:
        wfn_2_fchk = olx.file.Which("%s" %exe_pre)
    print ("NoSpherA2 executable is:")
    print (wfn_2_fchk)
  os.remove(wfn_2_fchk)
  nosphera2_dir = os.path.join(base_dir,"util","pyUtil","NoSpherA2")
  files = os.listdir(nosphera2_dir)
  for file in files:
    path = os.path.join(nosphera2_dir,file)
    print(path )
    if os.path.isdir(path):
      shutil.rmtree(path)
    else:
      os.remove(path)
  text = '''
  <td width='100%' align='center'>
<b>NoSpherA2 is no longer supported in Version 1.3<br>Please use Olex2 version 1.5!</b>
</td>
<!-- #include row_table_off gui\blocks\row_table_off.htm;1; -->
'''
  f = open(os.path.join(nosphera2_dir,"NoSpherA2_refine_interface.htm"),'w')
  f.write(text)
  f.close()
  return
cleanup()