[Python-Dev] KeyboardInterrupt on Windows (original) (raw)

Neal Norwitz neal@metaslash.com
Fri, 30 May 2003 17:04:30 -0400

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On Fri, May 30, 2003 at 04:40:00PM -0400, Neal Norwitz wrote:

On Fri, May 30, 2003 at 04:35:53PM -0400, Guido van Rossum wrote: > I received this problem report (Kurt is the IDLEFORK developer). Does > anybody know what could be the matter here? What changed recently???

> while 1: pass > > doesn't respond to a KeyboardInterrupt on Python2.3b1 on either > WinXP or W2K.

The patch below fixes the problem by not optimizing while 1:pass.
Seems kinda hacky though.

Neal

Index: Python/compile.c

RCS file: /cvsroot/python/python/dist/src/Python/compile.c,v retrieving revision 2.289 diff -w -u -r2.289 compile.c --- Python/compile.c 22 May 2003 22:00:04 -0000 2.289 +++ Python/compile.c 30 May 2003 21:02:26 -0000 @@ -411,6 +411,8 @@ tgttgt -= i + 3; /* Calc relative jump addr / if (tgttgt < 0) / No backward relative jumps */ continue;

•                   if (i == tgttgt && opcode == JUMP_ABSOLUTE)

•                           goto exitUnchanged;
                    codestr[i] = opcode;
                    SETARG(codestr, i, tgttgt);
                    break;

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