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-rw-r--r--Python/formatter_unicode.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/Python/formatter_unicode.c b/Python/formatter_unicode.c
index e3a8149841..056bb76902 100644
--- a/Python/formatter_unicode.c
+++ b/Python/formatter_unicode.c
@@ -846,6 +846,13 @@ format_long_internal(PyObject *value, const InternalFormatSpec *format,
" format specifier 'c'");
goto done;
}
+ /* error to request alternate format */
+ if (format->alternate) {
+ PyErr_SetString(PyExc_ValueError,
+ "Alternate form (#) not allowed with integer"
+ " format specifier 'c'");
+ goto done;
+ }
/* taken from unicodeobject.c formatchar() */
/* Integer input truncated to a character */