Dennis Sweeney <sweeney.dennis...@gmail.com> added the comment:

>From https://devguide.python.org/compiler/#source-code-to-ast:

> Basic blocks themselves are a block of IR that has a single entry point but 
> possibly multiple exit points.

In particular, compile.c's label_exception_targets has the assertion (`assert(i 
== b->b_iused -1);`) that jumps only occur as the last instruction of a block.

Does the devguide need updating, or do I have a misunderstanding?

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nosy: +Dennis Sweeney

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<https://bugs.python.org/issue42349>
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