From 3f7983a25a3d19779283c707fbdd5bc91b1587ef Mon Sep 17 00:00:00 2001
From: Xtreak <tir.karthi@gmail.com>
Date: Mon, 7 Jan 2019 20:39:14 +0530
Subject: bpo-35560: Remove assertion from format(float, "n") (GH-11288)

Fix an assertion error in format() in debug build for floating point
formatting with "n" format, zero padding and small width. Release build is
not impacted. Patch by Karthikeyan Singaravelan.
---
 Objects/unicodeobject.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'Objects/unicodeobject.c')

diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index f1dcfe9ab7..304ea7471f 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -9381,6 +9381,7 @@ _PyUnicode_InsertThousandsGrouping(
     PyObject *thousands_sep,
     Py_UCS4 *maxchar)
 {
+    min_width = Py_MAX(0, min_width);
     if (writer) {
         assert(digits != NULL);
         assert(maxchar == NULL);
@@ -9391,7 +9392,6 @@ _PyUnicode_InsertThousandsGrouping(
     }
     assert(0 <= d_pos);
     assert(0 <= n_digits);
-    assert(0 <= min_width);
     assert(grouping != NULL);
 
     if (digits != NULL) {
-- 
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