[issue33637] pip cannot build extensions for debug Python

[Ivan Pozdeev]

Ivan Pozdeev <ivan_pozdeev at mail.ru> added the comment:

>one will see all the variables and call hierarchy

and be able to step through the code. With optimizations, the current line jumps unpredictably, and some lines can't be visited because they're optimized away.

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue33637>
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