code: def _get_base_sys_path(self, environment=None):
      if self._sys_path is not None:
          return self._sys_path
  
      # The sys path has not been set explicitly.
      if environment is None:
          environment = self.get_environment()
  
      sys_path = list(environment.get_sys_path())
      try:
          sys_path.remove("")
      except ValueError:
          pass
      return sys_path
  
imports: import os
  import json
  from jedi._compatibility import FileNotFoundError, NotADirectoryError, PermissionError
  from jedi.api.environment import SameEnvironment, get_cached_default_environment
  from jedi.api.exceptions import WrongVersion
  from jedi._compatibility import force_unicode
  from jedi.evaluate.sys_path import discover_buildout_paths
  from jedi.evaluate.cache import evaluator_as_method_param_cache
  from jedi.common.utils import traverse_parents
label_desc: Use image node_id 4 for calling the Project obj's underlying member method code with example usage: obj._get_base_sys_path(environment) and returns: sys_path, self