[Python-Dev] Issue #26204: compiler now emits a SyntaxWarning on constant statement (original) (raw)

Victor Stinner victor.stinner at gmail.com
Mon Feb 8 14:51:37 EST 2016

Le 8 févr. 2016 8:14 PM, "Guido van Rossum" <guido at python.org> a écrit :

Hum. I'm not excited by this idea. It is not bad syntax.

Do you see an use case for "constant statements" other than strings and ellipsis?

Such statement does nothing. Previously the compiler emited LOAD_CONST+POP_TOP.

GCC also emits a warning on such code.

Have you actually seen newbies who were confused by such things?

Well, not really. But I don't see any use case of such code except of obvious mistakes. Sometimes such code appears after multiple refactoring (and mistakes).

Are you suggesting to remove the warning?

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