Handle devide by zero

corona10 · corona10 · commit cab2a61b06e5 · 2022-07-31T14:25:07.000+09:00
diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
@@ -9733,7 +9733,7 @@ split(PyObject *self,
     kind2 = PyUnicode_KIND(substring);
     len2 = PyUnicode_GET_LENGTH(substring);
     if (maxcount < 0) {
-        maxcount = len1 / len2 + 1;
+        maxcount = len2 == 0 ? (len1 + 1) / 2 : (len1 / len2) + 1;
     }
     if (kind1 < kind2 || len1 < len2) {
         out = PyList_New(1);
@@ -9823,7 +9823,7 @@ rsplit(PyObject *self,
     kind2 = PyUnicode_KIND(substring);
     len2 = PyUnicode_GET_LENGTH(substring);
     if (maxcount < 0) {
-        maxcount = len1 / len2 + 1;
+        maxcount = len2 == 0 ? (len1 + 1) / 2 : (len1 / len2) + 1;
     }
     if (kind1 < kind2 || len1 < len2) {
         out = PyList_New(1);
