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| author | Raymond Hettinger <python@rcn.com> | 2004-05-08 19:49:42 (GMT) |
|---|---|---|
| committer | Raymond Hettinger <python@rcn.com> | 2004-05-08 19:49:42 (GMT) |
| commit | 9d7c870c6d66c8b2e066001f31ac3037d50f7012 (patch) | |
| tree | c41da1755bdc2af527581c02cf2fd2ed9781ac38 /Modules | |
| parent | ffa5a5015a359045d7efb2c4cd0b5738c97b86ce (diff) | |
| download | cpython-9d7c870c6d66c8b2e066001f31ac3037d50f7012.zip cpython-9d7c870c6d66c8b2e066001f31ac3037d50f7012.tar.gz cpython-9d7c870c6d66c8b2e066001f31ac3037d50f7012.tar.bz2 | |
SF #950057: itertools.chain doesn't "process" exceptions as they occur
Both cycle() and chain() were handling exceptions only when switching
input sources. The patch makes the handle more immediate.
Will backport.
Diffstat (limited to 'Modules')
| -rw-r--r-- | Modules/itertoolsmodule.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/Modules/itertoolsmodule.c b/Modules/itertoolsmodule.c index 4ce4643..3515bc6 100644 --- a/Modules/itertoolsmodule.c +++ b/Modules/itertoolsmodule.c @@ -699,6 +699,12 @@ cycle_next(cycleobject *lz) PyList_Append(lz->saved, item); return item; } + if (PyErr_Occurred()) { + if (PyErr_ExceptionMatches(PyExc_StopIteration)) + PyErr_Clear(); + else + return NULL; + } if (PyList_Size(lz->saved) == 0) return NULL; it = PyObject_GetIter(lz->saved); @@ -1658,6 +1664,12 @@ chain_next(chainobject *lz) item = PyIter_Next(it); if (item != NULL) return item; + if (PyErr_Occurred()) { + if (PyErr_ExceptionMatches(PyExc_StopIteration)) + PyErr_Clear(); + else + return NULL; + } lz->iternum++; } return NULL; |