[issue17611] Move unwinding of stack for "pseudo exceptions" from interpreter to compiler.

[Raymond Hettinger]

Raymond Hettinger added the comment:

Additional effect:  Destabilizes lots of code that has had a decade to mature.  It messes with the compiler, the eval loop, the peephole optimizer, the disassembler, every third-party tool that examines or alters byte codes, any tool or VM that implements python byte codes, etc.  Changes like this tend to invalidate previous efforts to time and optimize code.

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nosy: +rhettinger

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue17611>
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