New submission from Ned Batchelder <n...@nedbatchelder.com>:
(Using CPython commit c95f8bc270.) This program has an "if 0:" line that becomes a NOP bytecode. It didn't used to in Python 3.9 print(1) if 0: # line 2 print(3) print(4) Using a simple trace program (https://github.com/nedbat/coveragepy/blob/master/lab/run_trace.py), it produces this output: call <string> 1 @-1 line <string> 1 @0 1 line <string> 2 @8 line <string> 4 @10 4 return <string> 4 @20 Using Python3.9 gives this output: call <string> 1 @-1 line <string> 1 @0 1 line <string> 4 @8 4 return <string> 4 @18 Is this change intentional? ---------- messages: 383452 nosy: Mark.Shannon, nedbat priority: normal severity: normal status: open title: "if 0:" lines are traced; they didn't use to be type: behavior versions: Python 3.10 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue42693> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com