text: __version_info__ = (1, 6, 0, 'alpha', 0)
  
  import subprocess
  
  
  def get_version(version=__version_info__):
  
      dev_st = {'alpha': 'a', 'beta': 'b', 'rc': 'c', 'final': ''}
  
      assert len(version) == 5
      assert version[3] in dev_st.keys()
  
      n = 2 + (version[2] != 0)
      version_str = '.'.join([str(v) for v in version[:n]])
  
      if version[3] == 'final':
          return version_str
  
      if version[3:] == ('alpha', 0):
          return '%s.dev0+%s' % (version_str, get_git_chgset())
      else:
          return ''.join((version_str, dev_st[version[3]], str(version[4])))
  
  
  def get_git_chgset():
      try:
          return subprocess.check_output(['git', 'rev-parse', '--short', 'HEAD'],
                                         universal_newlines=True).strip()[:-1]
      except:
          return '?'
  
  
  __version__ = get_version()
  