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Campbell Barton dfa5201763 Python: add opcodes for safe py-drivers ...

New opcodes added since 3.7 meant some actions such as `len()`
were disabled in safe py-driver execution.

The following opcodes have been added, see [0] for details:

- ROT_FOUR: similar to existing ROT_* opcodes, added v3.8.

- ROT_N: similar to existing ROT_* opcodes, added v3.10.

- GET_LEN: Push len(TOS) onto the stack, added v3.10.

- IS_OP: for ternary operator, added v3.9.

- BUILD_SLICE: access `slice` built-in, doesn't expose new
  functionality beyond existing `__getitem__` access.

[0]: https://docs.python.org/3.10/library/dis.html

2022-07-05 13:41:53 +10:00

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