code: def _vpcs_path(self):
          
  
          search_path = self._manager.config.get_section_config("VPCS").get("vpcs_path", "vpcs")
          path = shutil.which(search_path)
          # shutil.which return None if the path doesn't exists
          if not path:
              return search_path
          return path
docs: Returns the VPCS executable path.
  
          :returns: path to VPCS