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authorGeorg Brandl <georg@python.org>2010-08-02 21:44:25 (GMT)
committerGeorg Brandl <georg@python.org>2010-08-02 21:44:25 (GMT)
commit7d4bfb338dba4e8e01cc5d83f86f6132f4e31ced (patch)
treec91629c277351087ec1e552aa3a812e00bbd4ebd /Doc/extending
parent09b7cbaacc22f4b56eec05623b35bf89deb39253 (diff)
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Merged revisions 83536,83546-83548,83550,83554-83555,83558,83563,83565,83571,83574-83575 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k ........ r83536 | georg.brandl | 2010-08-02 19:49:25 +0200 (Mo, 02 Aug 2010) | 1 line #8578: mention danger of not incref'ing weak referenced object. ........ r83546 | georg.brandl | 2010-08-02 21:16:34 +0200 (Mo, 02 Aug 2010) | 1 line #7973: Fix distutils options spelling. ........ r83547 | georg.brandl | 2010-08-02 21:19:26 +0200 (Mo, 02 Aug 2010) | 1 line #7386: add example that shows that trailing path separators are stripped. ........ r83548 | georg.brandl | 2010-08-02 21:23:34 +0200 (Mo, 02 Aug 2010) | 1 line #8172: how does one use a property? ........ r83550 | georg.brandl | 2010-08-02 21:32:43 +0200 (Mo, 02 Aug 2010) | 1 line #9451: strengthen warning about __*__ special name usage. ........ r83554 | georg.brandl | 2010-08-02 21:43:05 +0200 (Mo, 02 Aug 2010) | 1 line #7280: note about nasmw.exe. ........ r83555 | georg.brandl | 2010-08-02 21:44:48 +0200 (Mo, 02 Aug 2010) | 1 line #8861: remove unused variable. ........ r83558 | georg.brandl | 2010-08-02 22:05:19 +0200 (Mo, 02 Aug 2010) | 1 line #8648: document UTF-7 codec functions. ........ r83563 | georg.brandl | 2010-08-02 22:21:21 +0200 (Mo, 02 Aug 2010) | 1 line #9037: add example how to raise custom exceptions from C code. ........ r83565 | georg.brandl | 2010-08-02 22:27:20 +0200 (Mo, 02 Aug 2010) | 1 line #9111: document that do_help() looks at docstrings. ........ r83571 | georg.brandl | 2010-08-02 22:44:34 +0200 (Mo, 02 Aug 2010) | 1 line Clarify that abs() is not a namespace. ........ r83574 | georg.brandl | 2010-08-02 22:47:56 +0200 (Mo, 02 Aug 2010) | 1 line #6867: epoll.register() returns None. ........ r83575 | georg.brandl | 2010-08-02 22:52:10 +0200 (Mo, 02 Aug 2010) | 1 line #9238: zipfile does handle archive comments. ........
Diffstat (limited to 'Doc/extending')
-rw-r--r--Doc/extending/extending.rst21
1 files changed, 20 insertions, 1 deletions
diff --git a/Doc/extending/extending.rst b/Doc/extending/extending.rst
index 5408b88..2d9594a 100644
--- a/Doc/extending/extending.rst
+++ b/Doc/extending/extending.rst
@@ -228,9 +228,28 @@ needed to ensure that it will not be discarded, causing :cdata:`SpamError` to
become a dangling pointer. Should it become a dangling pointer, C code which
raises the exception could cause a core dump or other unintended side effects.
-We discuss the use of PyMODINIT_FUNC as a function return type later in this
+We discuss the use of ``PyMODINIT_FUNC`` as a function return type later in this
sample.
+The :exc:`spam.error` exception can be raised in your extension module using a
+call to :cfunc:`PyErr_SetString` as shown below::
+
+ static PyObject *
+ spam_system(PyObject *self, PyObject *args)
+ {
+ const char *command;
+ int sts;
+
+ if (!PyArg_ParseTuple(args, "s", &command))
+ return NULL;
+ sts = system(command);
+ if (sts < 0) {
+ PyErr_SetString(SpamError, "System command failed");
+ return NULL;
+ }
+ return PyLong_FromLong(sts);
+ }
+
.. _backtoexample: