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<div dir="ltr">The byte code for the embedded expressions is all produced during the regular byte code generation phase.<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Sep 8, 2015 at 3:30 AM, Erik <span dir="ltr"><<a href="mailto:python@lucidity.plus.com" target="_blank">python@lucidity.plus.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi.<br>
<br>
I realise I'm coming late to the party on this, but I have a question about something I don't think the PEP makes clear.<br>
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When is the bytecode for the embedded expressions created?<br>
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Is it when the source code is parsed, or at runtime when the f-string is evaluated?<br>
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If the latter, then any process that works on bytecode (introspection tools, peep-hole optimisers etc) will need work.<br>
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I understand that colorising editors and analysis tools which operate at the source code level will need work, that's fair enough.<br>
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The PEP hints at things in this area in the "Specification", "Code equivalence" and "Expression evaluation" sections, and my guess is that it will (and should) happen during parsing, but I can't see where it comes right out and says it.<br>
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Thanks, E.<div class="HOEnZb"><div class="h5"><br>
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