Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
number of tests, all because of the codecs/_multibytecodecs issue described
here (it's not a Py3K issue, just something Py3K discovers):
http://mail.python.org/pipermail/python-dev/2006-April/064051.html

Hye-Shik Chang promised to look for a fix, so no need to fix it here. The
tests that are expected to break are:

test_codecencodings_cn
test_codecencodings_hk
test_codecencodings_jp
test_codecencodings_kr
test_codecencodings_tw
test_codecs
test_multibytecodec

This merge fixes an actual test failure (test_weakref) in this branch,
though, so I believe merging is the right thing to do anyway.
diff --git a/Modules/pwdmodule.c b/Modules/pwdmodule.c
index 9e7b864..9e01f48 100644
--- a/Modules/pwdmodule.c
+++ b/Modules/pwdmodule.c
@@ -42,6 +42,7 @@
 exception is raised if the entry asked for cannot be found.");
 
       
+static int initialized;
 static PyTypeObject StructPwdType;
 
 static void
@@ -186,9 +187,12 @@
 	if (m == NULL)
     		return;
 
-	PyStructSequence_InitType(&StructPwdType, &struct_pwd_type_desc);
+	if (!initialized)
+		PyStructSequence_InitType(&StructPwdType, 
+					  &struct_pwd_type_desc);
 	Py_INCREF((PyObject *) &StructPwdType);
 	PyModule_AddObject(m, "struct_passwd", (PyObject *) &StructPwdType);
 	/* And for b/w compatibility (this was defined by mistake): */
 	PyModule_AddObject(m, "struct_pwent", (PyObject *) &StructPwdType);
+	initialized = 1;
 }