commit dba2deeca2c070e2dfa08649b5729208567fd414
author Victor Stinner <victor.stinner@haypocalc.com> Wed Sep 28 21:50:42 2011 +0200
committer Victor Stinner <victor.stinner@haypocalc.com> Wed Sep 28 21:50:42 2011 +0200
tree 63437a2ae4cb49ba5a0ec6d9bd800858d6e66623
parent afbaa20fb92a1983d94e19715014872c6d9daebe

fill_number() ensures that the 'digits' string is ready

Python/formatter_unicode.c

diff --git a/Python/formatter_unicode.c b/Python/formatter_unicode.c
index 86385f6..52ccafa 100644
--- a/Python/formatter_unicode.c
+++ b/Python/formatter_unicode.c
@@ -587,7 +587,10 @@
     /* Only for type 'c' special case, it has no digits. */
     if (spec->n_digits != 0) {
         /* Fill the digits with InsertThousandsGrouping. */
-        char *pdigits = PyUnicode_DATA(digits);
+        char *pdigits;
+        if (PyUnicode_READY(digits))
+            return -1;
+        pdigits = PyUnicode_DATA(digits);
         if (PyUnicode_KIND(digits) < kind) {
             pdigits = _PyUnicode_AsKind(digits, kind);
             if (pdigits == NULL)