[Python-checkins] python/dist/src/Python sysmodule.c,2.127,2.128

[loewis at users.sourceforge.net]

Update of /cvsroot/python/python/dist/src/Python
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv22685/Python

Modified Files:
	sysmodule.c 
Log Message:
Partially revert #1074011; don't try to fflush stdin.
Backported to 2.3 and 2.4.


Index: sysmodule.c
===================================================================
RCS file: /cvsroot/python/python/dist/src/Python/sysmodule.c,v
retrieving revision 2.127
retrieving revision 2.128
diff -u -d -r2.127 -r2.128
--- sysmodule.c	23 Jan 2005 09:41:49 -0000	2.127
+++ sysmodule.c	27 Jan 2005 18:56:16 -0000	2.128
@@ -947,7 +947,16 @@
 	m = Py_InitModule3("sys", sys_methods, sys_doc);
 	sysdict = PyModule_GetDict(m);
 
-	sysin = PyFile_FromFile(stdin, "<stdin>", "r", _check_and_flush);
+	/* Closing the standard FILE* if sys.std* goes aways causes problems
+	 * for embedded Python usages. Closing them when somebody explicitly
+	 * invokes .close() might be possible, but the FAQ promises they get
+	 * never closed. However, we still need to get write errors when
+	 * writing fails (e.g. because stdout is redirected), so we flush the
+	 * streams and check for errors before the file objects are deleted.
+	 * On OS X, fflush()ing stdin causes an error, so we exempt stdin
+	 * from that procedure.
+	 */
+	sysin = PyFile_FromFile(stdin, "<stdin>", "r", NULL);
 	sysout = PyFile_FromFile(stdout, "<stdout>", "w", _check_and_flush);
 	syserr = PyFile_FromFile(stderr, "<stderr>", "w", _check_and_flush);
 	if (PyErr_Occurred())