> That is not entirely true: 
> https://github.com/python/cpython/pull/29639#issuecomment-974146979

The only places I've seen "if 0:" or "if False:" in live code was for
debugging. Optimizing that hardly seems necessary. In any case, the
original comment was about comparisons of two constants. I suppose
sweeping up all of that into a constant expression folding/elimination
step performed on the AST and/or during peephole optimization would
cover both cases.

Skip
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