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test_ok2/changelog/7122.breaking.rst

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Stop using Python's eval() for -m and -k Previously, the expressions given to the `-m` and `-k` options were evaluated with `eval`. This causes a few issues: - Python keywords cannot be used. - Constants like numbers, None, True, False are not handled correctly. - Various syntax like numeric operators and `X if Y else Z` is supported unintentionally. - `eval()` is somewhat dangerous for arbitrary input. - Can fail in many ways so requires `except Exception`. The format we want to support is quite simple, so change to a custom parser. This fixes the issues above, and gives us full control of the format, so can be documented comprehensively and even be extended in the future if we wish.
2020-04-25 18:38:53 +08:00
Expressions given to the ``-m`` and ``-k`` options are no longer evaluated using Python's ``eval()``.
The format supports ``or``, ``and``, ``not``, parenthesis and general identifiers to match against.
Python constants, keywords or other operators are no longer evaluated differently.