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don't run frame if it has no stack (closes #17669)

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This commit is contained in:
Benjamin Peterson 2013-04-10 17:00:56 -04:00
parent cd514cf175
commit c9314d9e08
2 changed files with 3 additions and 1 deletions
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2
Misc/NEWS
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@ -12,6 +12,8 @@ What's New in Python 3.3.2?
Core and Builtins Core and Builtins
----------------- -----------------
- Issue #17669: Fix crash involving finalization of generators using yield from.
- Issue #17619: Make input() check for Ctrl-C correctly on Windows. - Issue #17619: Make input() check for Ctrl-C correctly on Windows.
- Issue #17610: Don't rely on non-standard behavior of the C qsort() function. - Issue #17610: Don't rely on non-standard behavior of the C qsort() function.

2
Objects/genobject.c
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@ -178,7 +178,7 @@ gen_yf(PyGenObject *gen)
PyObject *yf = NULL; PyObject *yf = NULL;
PyFrameObject *f = gen->gi_frame; PyFrameObject *f = gen->gi_frame;
if (f) { if (f && f->f_stacktop) {
PyObject *bytecode = f->f_code->co_code; PyObject *bytecode = f->f_code->co_code;
unsigned char *code = (unsigned char *)PyBytes_AS_STRING(bytecode); unsigned char *code = (unsigned char *)PyBytes_AS_STRING(bytecode);