Change UnicodeDecodeError objects so that the 'object' attribute
is a bytes object.
Add 'y' and 'y#' format specifiers that work like 's' and 's#'
but only accept bytes objects.
diff --git a/Python/modsupport.c b/Python/modsupport.c
index af774f0..8f600dc 100644
--- a/Python/modsupport.c
+++ b/Python/modsupport.c
@@ -424,6 +424,39 @@
return v;
}
+ case 'y':
+ {
+ PyObject *v;
+ char *str = va_arg(*p_va, char *);
+ Py_ssize_t n;
+ if (**p_format == '#') {
+ ++*p_format;
+ if (flags & FLAG_SIZE_T)
+ n = va_arg(*p_va, Py_ssize_t);
+ else
+ n = va_arg(*p_va, int);
+ }
+ else
+ n = -1;
+ if (str == NULL) {
+ v = Py_None;
+ Py_INCREF(v);
+ }
+ else {
+ if (n < 0) {
+ size_t m = strlen(str);
+ if (m > PY_SSIZE_T_MAX) {
+ PyErr_SetString(PyExc_OverflowError,
+ "string too long for Python bytes");
+ return NULL;
+ }
+ n = (Py_ssize_t)m;
+ }
+ v = PyBytes_FromStringAndSize(str, n);
+ }
+ return v;
+ }
+
case 'N':
case 'S':
case 'O':