(cls)
| 361 | |
| 362 | @classmethod |
| 363 | def stash_pythonpath(cls): |
| 364 | # type: () -> Optional[str] |
| 365 | pythonpath = os.environ.pop(cls._PYTHONPATH, None) |
| 366 | if pythonpath is not None: |
| 367 | os.environ[cls._STASHED_PYTHONPATH] = pythonpath |
| 368 | return pythonpath |
| 369 | |
| 370 | @classmethod |
| 371 | def unstash_pythonpath(cls): |