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Add except* support #6530

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Merged
youknowone merged 7 commits into from
Dec 26, 2025
Merged

Add except* support #6530

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8bca3cd
Initial plan
Copilot Dec 25, 2025
1e9ab2a
Implement except* handling and starred subscript support
Copilot Dec 25, 2025
97ecbda
Move except* and starred subscript tests into builtin_exceptions
Copilot Dec 25, 2025
4dc0152
Fix CPython-compatible assert in builtin_exceptions test
Copilot Dec 25, 2025
a62981f
Refine except* codegen using named constant
Copilot Dec 25, 2025
a73b2d6
except*
youknowone Dec 25, 2025
8c2cddc
impl syntaxerror
youknowone Dec 25, 2025
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Fix CPython-compatible assert in builtin_exceptions test 
Co-authored-by: youknowone <69878+youknowone@users.noreply.github.com>
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@youknowone
Copilot and youknowone committed Dec 26, 2025
commit 4dc01521ac7b3d741df99fa3504afd7e30246933
4 changes: 3 additions & 1 deletion extra_tests/snippets/builtin_exceptions.py
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Expand Up @@ -373,7 +373,9 @@ class SubError(MyError):
raise ValueError("x")
except* ValueError as err:
assert isinstance(err, ExceptionGroup)
assert err.exceptions == (ValueError("x"),)
assert len(err.exceptions) == 1
assert isinstance(err.exceptions[0], ValueError)
assert err.exceptions[0].args == ("x",)
else:
assert False, "except* handler did not run"

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