From f947ffe951ebf2c194a2d566c3b524d40e96251e Mon Sep 17 00:00:00 2001
From: "Andrew M. Kuchling" <amk@amk.ca>
Date: Tue, 19 Dec 2000 22:49:06 +0000
Subject: Patch #102940: use only printable Unicode chars in reporting 
 incorrect % characters; characters outside the printable range are  replaced
 with '?'

---
 Objects/unicodeobject.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index 4438e89..fe591b5 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -5069,7 +5069,8 @@ PyObject *PyUnicode_Format(PyObject *format,
 		PyErr_Format(PyExc_ValueError,
 			     "unsupported format character '%c' (0x%x) "
 			     "at index %i",
-			     c, c, fmt -1 - PyUnicode_AS_UNICODE(uformat));
+			     (31<=c && c<=126) ? c : '?', 
+                             c, fmt -1 - PyUnicode_AS_UNICODE(uformat));
 		goto onError;
 	    }
 	    if (sign) {
-- 
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