changeset:   99477:e9bf5803b716
branch:      3.5
parent:      99474:02d2127fda6c
user:        Martin Panter <vadmium+py@gmail.com>
date:        Sun Dec 06 11:12:15 2015 +0000
files:       Modules/_io/fileio.c
description:
Issue #25717: Add comment explaining why errors are ignored


diff -r 02d2127fda6c -r e9bf5803b716 Modules/_io/fileio.c
--- a/Modules/_io/fileio.c	Sat Dec 05 23:55:33 2015 -0500
+++ b/Modules/_io/fileio.c	Sun Dec 06 11:12:15 2015 +0000
@@ -443,6 +443,9 @@
     fstat_result = _Py_fstat_noraise(self->fd, &fdfstat);
     Py_END_ALLOW_THREADS
     if (fstat_result < 0) {
+        /* Tolerate fstat() errors other than EBADF.  See Issue #25717, where
+        an anonymous file on a Virtual Box shared folder filesystem would
+        raise ENOENT. */
 #ifdef MS_WINDOWS
         if (GetLastError() == ERROR_INVALID_HANDLE) {
             PyErr_SetFromWindowsErr(0);