<commit_before>http://bugs.python.org/issue17797
http://connect.microsoft.com/VisualStudio/feedback/details/785119/

Visual Studio 2012 changed return value for fileno function that breaks
when python tries to check/setup stdin/out/err
diff -ur python3.org/Python/pythonrun.c python3/Python/pythonrun.c
--- python3.org/Python/pythonrun.c	2014-05-19 19:06:01.305362400 +0200
+++ python3/Python/pythonrun.c	2014-05-19 19:07:13.649079800 +0200
@@ -1083,7 +1083,11 @@
      * and fileno() may point to an invalid file descriptor. For example
      * GUI apps don't have valid standard streams by default.
      */
+#ifdef MS_WINDOWS
+    if (!is_valid_fd(fd) || GetStdHandle(STD_INPUT_HANDLE) == NULL) {
+#else
     if (!is_valid_fd(fd)) {
+#endif
         std = Py_None;
         Py_INCREF(std);
     }
@@ -1098,7 +1102,11 @@
 
     /* Set sys.stdout */
     fd = fileno(stdout);
+#ifdef MS_WINDOWS
+    if (!is_valid_fd(fd) || GetStdHandle(STD_OUTPUT_HANDLE) == NULL) {
+#else
     if (!is_valid_fd(fd)) {
+#endif
         std = Py_None;
         Py_INCREF(std);
     }
@@ -1114,7 +1122,11 @@
 #if 1 /* Disable this if you have trouble debugging bootstrap stuff */
     /* Set sys.stderr, replaces the preliminary stderr */
     fd = fileno(stderr);
+#ifdef MS_WINDOWS
+    if (!is_valid_fd(fd) || GetStdHandle(STD_ERROR_HANDLE) == NULL) {
+#else
     if (!is_valid_fd(fd)) {
+#endif
         std = Py_None;
         Py_INCREF(std);
     }<commit_msg>fdo#77891 unconditionally disable console streams for WinXP<commit_after>http://bugs.python.org/issue17797
http://connect.microsoft.com/VisualStudio/feedback/details/785119/

Visual Studio 2012 changed return value for fileno function that breaks
when python tries to check/setup stdin/out/err
GetStdHandle on Windows XP behaves contrary to the documentation...
diff -ur python3.org/Python/pythonrun.c python3/Python/pythonrun.c
--- python3.org/Python/pythonrun.c	2014-05-24 16:36:20.361672900 +0200
+++ python3/Python/pythonrun.c	2014-05-24 16:37:38.424159100 +0200
@@ -1036,7 +1036,15 @@
     int status = 0, fd;
     PyObject * encoding_attr;
     char *encoding = NULL, *errors;
-
+#ifdef MS_WINDOWS
+    OSVERSIONINFOEX osvi;
+    BOOL bIsWindowsXP;
+
+    ZeroMemory(&osvi, sizeof(osvi));
+    osvi.dwOSVersionInfoSize = sizeof(osvi);
+    GetVersionEx(&osvi);
+    bIsWindowsXP = (osvi.dwMajorVersion < 6);
+#endif
     /* Hack to avoid a nasty recursion issue when Python is invoked
        in verbose mode: pre-import the Latin-1 and UTF-8 codecs */
     if ((m = PyImport_ImportModule("encodings.utf_8")) == NULL) {
@@ -1084,7 +1092,11 @@
      * and fileno() may point to an invalid file descriptor. For example
      * GUI apps don't have valid standard streams by default.
      */
+#ifdef MS_WINDOWS
+    if (!is_valid_fd(fd) || GetStdHandle(STD_INPUT_HANDLE) == NULL || bIsWindowsXP) {
+#else
     if (!is_valid_fd(fd)) {
+#endif
         std = Py_None;
         Py_INCREF(std);
     }
@@ -1099,7 +1111,11 @@
 
     /* Set sys.stdout */
     fd = fileno(stdout);
+#ifdef MS_WINDOWS
+    if (!is_valid_fd(fd) || GetStdHandle(STD_OUTPUT_HANDLE) == NULL || bIsWindowsXP) {
+#else
     if (!is_valid_fd(fd)) {
+#endif
         std = Py_None;
         Py_INCREF(std);
     }
@@ -1115,7 +1131,11 @@
 #if 1 /* Disable this if you have trouble debugging bootstrap stuff */
     /* Set sys.stderr, replaces the preliminary stderr */
     fd = fileno(stderr);
+#ifdef MS_WINDOWS
+    if (!is_valid_fd(fd) || GetStdHandle(STD_ERROR_HANDLE) == NULL || bIsWindowsXP) {
+#else
     if (!is_valid_fd(fd)) {
+#endif
         std = Py_None;
         Py_INCREF(std);
     }
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