code: def _get_cpv(cp, installed=True):
      '''
      add version to category/package
      @cp - name of package in format category/name
      @installed - boolean value, if False, function returns cpv
      for latest available package
      '''
      if installed:
          return _get_portage().db[portage.root]['vartree'].dep_bestmatch(cp)
      else:
          return _porttree().dep_bestmatch(cpf _get_cpv(cp, installed=True):
      '''
      add version to category/package
      @cp - name of package in format category/name
      @installed - boolean value, if False, function returns cpv
      for latest available package
      '''
      if installed:
          return _get_portage().db[portage.root]['vartree'].dep_bestmatch(cp)
      else:
          return _porttree().dep_bestmatch(cp)
docs: add version to category/package
      @cp - name of package in format category/name
      @installed - boolean value, if False, function returns cpv
      for latest available package