[issue31353] Implement PEP 553 - built-in breakpoint()

[Serhiy Storchaka]

Change by Serhiy Storchaka <storchaka+cpython at gmail.com>:


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title: Implement PEP 553 - built-in debug() -> Implement PEP 553 - built-in breakpoint()

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue31353>
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