()
| 517 | |
| 518 | |
| 519 | def _make_empty_cell(): |
| 520 | if False: |
| 521 | # trick the compiler into creating an empty cell in our lambda |
| 522 | cell = None |
| 523 | raise AssertionError("this route should not be executed") |
| 524 | |
| 525 | return (lambda: cell).__closure__[0] |
| 526 | |
| 527 | |
| 528 | def _make_cell(value=_empty_cell_value): |
no outgoing calls
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