sandbox.py 文件源码

def _install_fake_file(config, python_lib_paths, path_override_hook):
  """Install a stub file implementation to enforce sandbox rules."""
  stubs.FakeFile.set_allowed_paths(config.application_root,
                                   python_lib_paths[1:] +
                                   path_override_hook.extra_accessible_paths)
  stubs.FakeFile.set_skip_files(config.skip_files)
  stubs.FakeFile.set_static_files(config.static_files)
  __builtin__.file = stubs.FakeFile
  __builtin__.open = stubs.FakeFile
  types.FileType = stubs.FakeFile